Import regex from tcl 8.4.5
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/RXSPENCER@4096 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Ryan Norton
@@ -2,21 +2,21 @@
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* colorings of characters
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* This file is #included by regcomp.c.
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*
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* Copyright (c) 1998, 1999 Henry Spencer. All rights reserved.
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*
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* Copyright (c) 1998, 1999 Henry Spencer. All rights reserved.
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*
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* Development of this software was funded, in part, by Cray Research Inc.,
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* UUNET Communications Services Inc., Sun Microsystems Inc., and Scriptics
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* Corporation, none of whom are responsible for the results. The author
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* thanks all of them.
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*
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* thanks all of them.
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*
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* Redistribution and use in source and binary forms -- with or without
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* modification -- are permitted for any purpose, provided that
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* redistributions in source form retain this entire copyright notice and
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* indicate the origin and nature of any modifications.
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*
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*
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* I'd appreciate being given credit for this package in the documentation
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* of software which uses it, but that is not a requirement.
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*
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*
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* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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@@ -28,7 +28,6 @@
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Header$
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*
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*
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* Note that there are some incestuous relationships between this code and
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@@ -37,20 +36,22 @@
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#define CISERR() VISERR(cm->v)
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#define CERR(e) VERR(cm->v, (e))
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#define CISERR() VISERR(cm->v)
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#define CERR(e) VERR(cm->v, (e))
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/*
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* initcm - set up new colormap
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- initcm - set up new colormap
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^ static VOID initcm(struct vars *, struct colormap *);
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*/
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static void
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initcm(struct vars * v,
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struct colormap * cm)
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static VOID
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initcm(v, cm)
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struct vars *v;
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struct colormap *cm;
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{
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int i;
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int j;
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int i;
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int j;
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union tree *t;
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union tree *nextt;
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struct colordesc *cd;
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@@ -63,41 +64,41 @@ initcm(struct vars * v,
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cm->max = 0;
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cm->free = 0;
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cd = cm->cd; /* cm->cd[WHITE] */
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cd = cm->cd; /* cm->cd[WHITE] */
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cd->sub = NOSUB;
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cd->arcs = NULL;
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cd->flags = 0;
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cd->nchrs = CHR_MAX - CHR_MIN + 1;
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/* upper levels of tree */
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for (t = &cm->tree[0], j = NBYTS - 1; j > 0; t = nextt, j--)
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{
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for (t = &cm->tree[0], j = NBYTS-1; j > 0; t = nextt, j--) {
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nextt = t + 1;
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for (i = BYTTAB - 1; i >= 0; i--)
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for (i = BYTTAB-1; i >= 0; i--)
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t->tptr[i] = nextt;
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}
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/* bottom level is solid white */
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t = &cm->tree[NBYTS - 1];
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for (i = BYTTAB - 1; i >= 0; i--)
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t = &cm->tree[NBYTS-1];
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for (i = BYTTAB-1; i >= 0; i--)
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t->tcolor[i] = WHITE;
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cd->block = t;
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}
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/*
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* freecm - free dynamically-allocated things in a colormap
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- freecm - free dynamically-allocated things in a colormap
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^ static VOID freecm(struct colormap *);
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*/
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static void
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freecm(struct colormap * cm)
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static VOID
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freecm(cm)
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struct colormap *cm;
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{
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size_t i;
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size_t i;
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union tree *cb;
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cm->magic = 0;
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if (NBYTS > 1)
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cmtreefree(cm, cm->tree, 0);
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for (i = 1; i <= cm->max; i++) /* skip WHITE */
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if (!UNUSEDCOLOR(&cm->cd[i]))
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{
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if (!UNUSEDCOLOR(&cm->cd[i])) {
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cb = cm->cd[i].block;
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if (cb != NULL)
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FREE(cb);
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@@ -107,32 +108,29 @@ freecm(struct colormap * cm)
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}
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/*
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* cmtreefree - free a non-terminal part of a colormap tree
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- cmtreefree - free a non-terminal part of a colormap tree
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^ static VOID cmtreefree(struct colormap *, union tree *, int);
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*/
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static void
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cmtreefree(struct colormap * cm,
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union tree * tree,
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int level) /* level number (top == 0) of this block */
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static VOID
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cmtreefree(cm, tree, level)
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struct colormap *cm;
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union tree *tree;
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int level; /* level number (top == 0) of this block */
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{
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int i;
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int i;
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union tree *t;
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union tree *fillt = &cm->tree[level + 1];
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union tree *fillt = &cm->tree[level+1];
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union tree *cb;
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assert(level < NBYTS - 1); /* this level has pointers */
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for (i = BYTTAB - 1; i >= 0; i--)
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{
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assert(level < NBYTS-1); /* this level has pointers */
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for (i = BYTTAB-1; i >= 0; i--) {
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t = tree->tptr[i];
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assert(t != NULL);
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if (t != fillt)
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{
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if (level < NBYTS - 2)
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{ /* more pointer blocks below */
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cmtreefree(cm, t, level + 1);
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if (t != fillt) {
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if (level < NBYTS-2) { /* more pointer blocks below */
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cmtreefree(cm, t, level+1);
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FREE(t);
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}
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else
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{ /* color block below */
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} else { /* color block below */
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cb = cm->cd[t->tcolor[0]].block;
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if (t != cb) /* not a solid block */
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FREE(t);
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@@ -142,24 +140,26 @@ cmtreefree(struct colormap * cm,
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}
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/*
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* setcolor - set the color of a character in a colormap
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- setcolor - set the color of a character in a colormap
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^ static color setcolor(struct colormap *, pchr, pcolor);
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*/
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static color /* previous color */
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setcolor(struct colormap * cm,
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chr c,
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pcolor co)
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static color /* previous color */
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setcolor(cm, c, co)
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struct colormap *cm;
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pchr c;
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pcolor co;
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{
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uchr uc = c;
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int shift;
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int level;
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int b;
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int bottom;
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uchr uc = c;
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int shift;
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int level;
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int b;
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int bottom;
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union tree *t;
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union tree *newt;
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union tree *fillt;
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union tree *lastt;
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union tree *cb;
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color prev;
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color prev;
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assert(cm->magic == CMMAGIC);
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if (CISERR() || co == COLORLESS)
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@@ -167,30 +167,27 @@ setcolor(struct colormap * cm,
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t = cm->tree;
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for (level = 0, shift = BYTBITS * (NBYTS - 1); shift > 0;
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level++, shift -= BYTBITS)
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{
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level++, shift -= BYTBITS) {
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b = (uc >> shift) & BYTMASK;
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lastt = t;
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t = lastt->tptr[b];
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assert(t != NULL);
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fillt = &cm->tree[level + 1];
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fillt = &cm->tree[level+1];
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bottom = (shift <= BYTBITS) ? 1 : 0;
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cb = (bottom) ? cm->cd[t->tcolor[0]].block : fillt;
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if (t == fillt || t == cb)
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{ /* must allocate a new block */
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newt = (union tree *) MALLOC((bottom) ?
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sizeof(struct colors) : sizeof(struct ptrs));
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if (newt == NULL)
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{
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if (t == fillt || t == cb) { /* must allocate a new block */
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newt = (union tree *)MALLOC((bottom) ?
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sizeof(struct colors) : sizeof(struct ptrs));
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if (newt == NULL) {
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CERR(REG_ESPACE);
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return COLORLESS;
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}
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if (bottom)
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memcpy(VS(newt->tcolor), VS(t->tcolor),
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BYTTAB * sizeof(color));
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BYTTAB*sizeof(color));
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else
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memcpy(VS(newt->tptr), VS(t->tptr),
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BYTTAB * sizeof(union tree *));
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BYTTAB*sizeof(union tree *));
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t = newt;
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lastt->tptr[b] = t;
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}
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@@ -198,67 +195,63 @@ setcolor(struct colormap * cm,
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b = uc & BYTMASK;
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prev = t->tcolor[b];
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t->tcolor[b] = (color) co;
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t->tcolor[b] = (color)co;
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return prev;
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}
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/*
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* maxcolor - report largest color number in use
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- maxcolor - report largest color number in use
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^ static color maxcolor(struct colormap *);
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*/
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static color
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maxcolor(struct colormap * cm)
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maxcolor(cm)
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struct colormap *cm;
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{
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if (CISERR())
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return COLORLESS;
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return (color) cm->max;
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return (color)cm->max;
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}
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/*
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* newcolor - find a new color (must be subject of setcolor at once)
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* Beware: may relocate the colordescs.
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- newcolor - find a new color (must be subject of setcolor at once)
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* Beware: may relocate the colordescs.
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^ static color newcolor(struct colormap *);
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*/
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static color /* COLORLESS for error */
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newcolor(struct colormap * cm)
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static color /* COLORLESS for error */
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newcolor(cm)
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struct colormap *cm;
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{
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struct colordesc *cd;
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struct colordesc *new;
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size_t n;
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size_t n;
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if (CISERR())
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return COLORLESS;
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if (cm->free != 0)
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{
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if (cm->free != 0) {
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assert(cm->free > 0);
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assert((size_t) cm->free < cm->ncds);
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assert((size_t)cm->free < cm->ncds);
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cd = &cm->cd[cm->free];
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assert(UNUSEDCOLOR(cd));
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assert(cd->arcs == NULL);
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cm->free = cd->sub;
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}
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else if (cm->max < cm->ncds - 1)
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{
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} else if (cm->max < cm->ncds - 1) {
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cm->max++;
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cd = &cm->cd[cm->max];
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}
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else
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{
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} else {
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/* oops, must allocate more */
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n = cm->ncds * 2;
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if (cm->cd == cm->cdspace)
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{
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new = (struct colordesc *) MALLOC(n *
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sizeof(struct colordesc));
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if (cm->cd == cm->cdspace) {
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new = (struct colordesc *)MALLOC(n *
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sizeof(struct colordesc));
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if (new != NULL)
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memcpy(VS(new), VS(cm->cdspace), cm->ncds *
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sizeof(struct colordesc));
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}
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else
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new = (struct colordesc *) REALLOC(cm->cd,
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n * sizeof(struct colordesc));
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if (new == NULL)
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{
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sizeof(struct colordesc));
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} else
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new = (struct colordesc *)REALLOC(cm->cd,
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n * sizeof(struct colordesc));
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if (new == NULL) {
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CERR(REG_ESPACE);
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return COLORLESS;
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}
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@@ -275,19 +268,20 @@ newcolor(struct colormap * cm)
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cd->flags = 0;
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cd->block = NULL;
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return (color) (cd - cm->cd);
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return (color)(cd - cm->cd);
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}
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/*
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* freecolor - free a color (must have no arcs or subcolor)
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- freecolor - free a color (must have no arcs or subcolor)
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^ static VOID freecolor(struct colormap *, pcolor);
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*/
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static void
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freecolor(struct colormap * cm,
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pcolor co)
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static VOID
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freecolor(cm, co)
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struct colormap *cm;
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pcolor co;
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{
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struct colordesc *cd = &cm->cd[co];
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color pco,
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nco; /* for freelist scan */
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color pco, nco; /* for freelist scan */
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assert(co >= 0);
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if (co == WHITE)
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@@ -297,53 +291,47 @@ freecolor(struct colormap * cm,
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assert(cd->sub == NOSUB);
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assert(cd->nchrs == 0);
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cd->flags = FREECOL;
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if (cd->block != NULL)
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{
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if (cd->block != NULL) {
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FREE(cd->block);
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cd->block = NULL; /* just paranoia */
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cd->block = NULL; /* just paranoia */
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}
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if ((size_t) co == cm->max)
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{
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if ((size_t)co == cm->max) {
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while (cm->max > WHITE && UNUSEDCOLOR(&cm->cd[cm->max]))
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cm->max--;
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assert(cm->free >= 0);
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while ((size_t) cm->free > cm->max)
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while ((size_t)cm->free > cm->max)
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cm->free = cm->cd[cm->free].sub;
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if (cm->free > 0)
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{
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if (cm->free > 0) {
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assert(cm->free < cm->max);
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pco = cm->free;
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nco = cm->cd[pco].sub;
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while (nco > 0)
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if ((size_t) nco > cm->max)
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{
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if ((size_t)nco > cm->max) {
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/* take this one out of freelist */
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nco = cm->cd[nco].sub;
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cm->cd[pco].sub = nco;
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}
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else
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{
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} else {
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assert(nco < cm->max);
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pco = nco;
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nco = cm->cd[pco].sub;
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}
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}
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}
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else
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{
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} else {
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cd->sub = cm->free;
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cm->free = (color) (cd - cm->cd);
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cm->free = (color)(cd - cm->cd);
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}
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}
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/*
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* pseudocolor - allocate a false color, to be managed by other means
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- pseudocolor - allocate a false color, to be managed by other means
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^ static color pseudocolor(struct colormap *);
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*/
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static color
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pseudocolor(struct colormap * cm)
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pseudocolor(cm)
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struct colormap *cm;
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{
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color co;
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color co;
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co = newcolor(cm);
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if (CISERR())
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@@ -354,13 +342,16 @@ pseudocolor(struct colormap * cm)
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}
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/*
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* subcolor - allocate a new subcolor (if necessary) to this chr
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- subcolor - allocate a new subcolor (if necessary) to this chr
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^ static color subcolor(struct colormap *, pchr c);
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*/
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static color
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subcolor(struct colormap * cm, chr c)
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subcolor(cm, c)
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struct colormap *cm;
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pchr c;
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{
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color co; /* current color of c */
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color sco; /* new subcolor */
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color co; /* current color of c */
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color sco; /* new subcolor */
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co = GETCOLOR(cm, c);
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sco = newsub(cm, co);
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@@ -368,8 +359,8 @@ subcolor(struct colormap * cm, chr c)
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return COLORLESS;
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assert(sco != COLORLESS);
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if (co == sco) /* already in an open subcolor */
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return co; /* rest is redundant */
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if (co == sco) /* already in an open subcolor */
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return co; /* rest is redundant */
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cm->cd[co].nchrs--;
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cm->cd[sco].nchrs++;
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||||
setcolor(cm, c, sco);
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||||
@@ -377,22 +368,22 @@ subcolor(struct colormap * cm, chr c)
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||||
}
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||||
|
||||
/*
|
||||
* newsub - allocate a new subcolor (if necessary) for a color
|
||||
- newsub - allocate a new subcolor (if necessary) for a color
|
||||
^ static color newsub(struct colormap *, pcolor);
|
||||
*/
|
||||
static color
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||||
newsub(struct colormap * cm,
|
||||
pcolor co)
|
||||
newsub(cm, co)
|
||||
struct colormap *cm;
|
||||
pcolor co;
|
||||
{
|
||||
color sco; /* new subcolor */
|
||||
color sco; /* new subcolor */
|
||||
|
||||
sco = cm->cd[co].sub;
|
||||
if (sco == NOSUB)
|
||||
{ /* color has no open subcolor */
|
||||
if (cm->cd[co].nchrs == 1) /* optimization */
|
||||
if (sco == NOSUB) { /* color has no open subcolor */
|
||||
if (cm->cd[co].nchrs == 1) /* optimization */
|
||||
return co;
|
||||
sco = newcolor(cm); /* must create subcolor */
|
||||
if (sco == COLORLESS)
|
||||
{
|
||||
sco = newcolor(cm); /* must create subcolor */
|
||||
if (sco == COLORLESS) {
|
||||
assert(CISERR());
|
||||
return COLORLESS;
|
||||
}
|
||||
@@ -405,26 +396,29 @@ newsub(struct colormap * cm,
|
||||
}
|
||||
|
||||
/*
|
||||
* subrange - allocate new subcolors to this range of chrs, fill in arcs
|
||||
- subrange - allocate new subcolors to this range of chrs, fill in arcs
|
||||
^ static VOID subrange(struct vars *, pchr, pchr, struct state *,
|
||||
^ struct state *);
|
||||
*/
|
||||
static void
|
||||
subrange(struct vars * v,
|
||||
chr from,
|
||||
chr to,
|
||||
struct state * lp,
|
||||
struct state * rp)
|
||||
static VOID
|
||||
subrange(v, from, to, lp, rp)
|
||||
struct vars *v;
|
||||
pchr from;
|
||||
pchr to;
|
||||
struct state *lp;
|
||||
struct state *rp;
|
||||
{
|
||||
uchr uf;
|
||||
int i;
|
||||
uchr uf;
|
||||
int i;
|
||||
|
||||
assert(from <= to);
|
||||
|
||||
/* first, align "from" on a tree-block boundary */
|
||||
uf = (uchr) from;
|
||||
i = (int) (((uf + BYTTAB - 1) & (uchr) ~BYTMASK) - uf);
|
||||
uf = (uchr)from;
|
||||
i = (int)( ((uf + BYTTAB-1) & (uchr)~BYTMASK) - uf );
|
||||
for (; from <= to && i > 0; i--, from++)
|
||||
newarc(v->nfa, PLAIN, subcolor(v->cm, from), lp, rp);
|
||||
if (from > to) /* didn't reach a boundary */
|
||||
if (from > to) /* didn't reach a boundary */
|
||||
return;
|
||||
|
||||
/* deal with whole blocks */
|
||||
@@ -437,28 +431,30 @@ subrange(struct vars * v,
|
||||
}
|
||||
|
||||
/*
|
||||
* subblock - allocate new subcolors for one tree block of chrs, fill in arcs
|
||||
- subblock - allocate new subcolors for one tree block of chrs, fill in arcs
|
||||
^ static VOID subblock(struct vars *, pchr, struct state *, struct state *);
|
||||
*/
|
||||
static void
|
||||
subblock(struct vars * v,
|
||||
chr start, /* first of BYTTAB chrs */
|
||||
struct state * lp,
|
||||
struct state * rp)
|
||||
static VOID
|
||||
subblock(v, start, lp, rp)
|
||||
struct vars *v;
|
||||
pchr start; /* first of BYTTAB chrs */
|
||||
struct state *lp;
|
||||
struct state *rp;
|
||||
{
|
||||
uchr uc = start;
|
||||
uchr uc = start;
|
||||
struct colormap *cm = v->cm;
|
||||
int shift;
|
||||
int level;
|
||||
int i;
|
||||
int b;
|
||||
int shift;
|
||||
int level;
|
||||
int i;
|
||||
int b;
|
||||
union tree *t;
|
||||
union tree *cb;
|
||||
union tree *fillt;
|
||||
union tree *lastt;
|
||||
int previ;
|
||||
int ndone;
|
||||
color co;
|
||||
color sco;
|
||||
int previ;
|
||||
int ndone;
|
||||
color co;
|
||||
color sco;
|
||||
|
||||
assert((uc % BYTTAB) == 0);
|
||||
|
||||
@@ -466,23 +462,20 @@ subblock(struct vars * v,
|
||||
t = cm->tree;
|
||||
fillt = NULL;
|
||||
for (level = 0, shift = BYTBITS * (NBYTS - 1); shift > 0;
|
||||
level++, shift -= BYTBITS)
|
||||
{
|
||||
level++, shift -= BYTBITS) {
|
||||
b = (uc >> shift) & BYTMASK;
|
||||
lastt = t;
|
||||
t = lastt->tptr[b];
|
||||
assert(t != NULL);
|
||||
fillt = &cm->tree[level + 1];
|
||||
if (t == fillt && shift > BYTBITS)
|
||||
{ /* need new ptr block */
|
||||
t = (union tree *) MALLOC(sizeof(struct ptrs));
|
||||
if (t == NULL)
|
||||
{
|
||||
fillt = &cm->tree[level+1];
|
||||
if (t == fillt && shift > BYTBITS) { /* need new ptr block */
|
||||
t = (union tree *)MALLOC(sizeof(struct ptrs));
|
||||
if (t == NULL) {
|
||||
CERR(REG_ESPACE);
|
||||
return;
|
||||
}
|
||||
memcpy(VS(t->tptr), VS(fillt->tptr),
|
||||
BYTTAB * sizeof(union tree *));
|
||||
BYTTAB*sizeof(union tree *));
|
||||
lastt->tptr[b] = t;
|
||||
}
|
||||
}
|
||||
@@ -490,16 +483,13 @@ subblock(struct vars * v,
|
||||
/* special cases: fill block or solid block */
|
||||
co = t->tcolor[0];
|
||||
cb = cm->cd[co].block;
|
||||
if (t == fillt || t == cb)
|
||||
{
|
||||
if (t == fillt || t == cb) {
|
||||
/* either way, we want a subcolor solid block */
|
||||
sco = newsub(cm, co);
|
||||
t = cm->cd[sco].block;
|
||||
if (t == NULL)
|
||||
{ /* must set it up */
|
||||
t = (union tree *) MALLOC(sizeof(struct colors));
|
||||
if (t == NULL)
|
||||
{
|
||||
if (t == NULL) { /* must set it up */
|
||||
t = (union tree *)MALLOC(sizeof(struct colors));
|
||||
if (t == NULL) {
|
||||
CERR(REG_ESPACE);
|
||||
return;
|
||||
}
|
||||
@@ -517,14 +507,12 @@ subblock(struct vars * v,
|
||||
|
||||
/* general case, a mixed block to be altered */
|
||||
i = 0;
|
||||
while (i < BYTTAB)
|
||||
{
|
||||
while (i < BYTTAB) {
|
||||
co = t->tcolor[i];
|
||||
sco = newsub(cm, co);
|
||||
newarc(v->nfa, PLAIN, sco, lp, rp);
|
||||
previ = i;
|
||||
do
|
||||
{
|
||||
do {
|
||||
t->tcolor[i++] = sco;
|
||||
} while (i < BYTTAB && t->tcolor[i] == co);
|
||||
ndone = i - previ;
|
||||
@@ -534,40 +522,35 @@ subblock(struct vars * v,
|
||||
}
|
||||
|
||||
/*
|
||||
* okcolors - promote subcolors to full colors
|
||||
- okcolors - promote subcolors to full colors
|
||||
^ static VOID okcolors(struct nfa *, struct colormap *);
|
||||
*/
|
||||
static void
|
||||
okcolors(struct nfa * nfa,
|
||||
struct colormap * cm)
|
||||
static VOID
|
||||
okcolors(nfa, cm)
|
||||
struct nfa *nfa;
|
||||
struct colormap *cm;
|
||||
{
|
||||
struct colordesc *cd;
|
||||
struct colordesc *end = CDEND(cm);
|
||||
struct colordesc *scd;
|
||||
struct arc *a;
|
||||
color co;
|
||||
color sco;
|
||||
color co;
|
||||
color sco;
|
||||
|
||||
for (cd = cm->cd, co = 0; cd < end; cd++, co++)
|
||||
{
|
||||
for (cd = cm->cd, co = 0; cd < end; cd++, co++) {
|
||||
sco = cd->sub;
|
||||
if (UNUSEDCOLOR(cd) || sco == NOSUB)
|
||||
{
|
||||
if (UNUSEDCOLOR(cd) || sco == NOSUB) {
|
||||
/* has no subcolor, no further action */
|
||||
}
|
||||
else if (sco == co)
|
||||
{
|
||||
} else if (sco == co) {
|
||||
/* is subcolor, let parent deal with it */
|
||||
}
|
||||
else if (cd->nchrs == 0)
|
||||
{
|
||||
} else if (cd->nchrs == 0) {
|
||||
/* parent empty, its arcs change color to subcolor */
|
||||
cd->sub = NOSUB;
|
||||
scd = &cm->cd[sco];
|
||||
assert(scd->nchrs > 0);
|
||||
assert(scd->sub == sco);
|
||||
scd->sub = NOSUB;
|
||||
while ((a = cd->arcs) != NULL)
|
||||
{
|
||||
while ((a = cd->arcs) != NULL) {
|
||||
assert(a->co == co);
|
||||
/* uncolorchain(cm, a); */
|
||||
cd->arcs = a->colorchain;
|
||||
@@ -577,17 +560,14 @@ okcolors(struct nfa * nfa,
|
||||
scd->arcs = a;
|
||||
}
|
||||
freecolor(cm, co);
|
||||
}
|
||||
else
|
||||
{
|
||||
} else {
|
||||
/* parent's arcs must gain parallel subcolor arcs */
|
||||
cd->sub = NOSUB;
|
||||
scd = &cm->cd[sco];
|
||||
assert(scd->nchrs > 0);
|
||||
assert(scd->sub == sco);
|
||||
scd->sub = NOSUB;
|
||||
for (a = cd->arcs; a != NULL; a = a->colorchain)
|
||||
{
|
||||
for (a = cd->arcs; a != NULL; a = a->colorchain) {
|
||||
assert(a->co == co);
|
||||
newarc(nfa, a->type, sco, a->from, a->to);
|
||||
}
|
||||
@@ -596,11 +576,13 @@ okcolors(struct nfa * nfa,
|
||||
}
|
||||
|
||||
/*
|
||||
* colorchain - add this arc to the color chain of its color
|
||||
- colorchain - add this arc to the color chain of its color
|
||||
^ static VOID colorchain(struct colormap *, struct arc *);
|
||||
*/
|
||||
static void
|
||||
colorchain(struct colormap * cm,
|
||||
struct arc * a)
|
||||
static VOID
|
||||
colorchain(cm, a)
|
||||
struct colormap *cm;
|
||||
struct arc *a;
|
||||
{
|
||||
struct colordesc *cd = &cm->cd[a->co];
|
||||
|
||||
@@ -609,36 +591,39 @@ colorchain(struct colormap * cm,
|
||||
}
|
||||
|
||||
/*
|
||||
* uncolorchain - delete this arc from the color chain of its color
|
||||
- uncolorchain - delete this arc from the color chain of its color
|
||||
^ static VOID uncolorchain(struct colormap *, struct arc *);
|
||||
*/
|
||||
static void
|
||||
uncolorchain(struct colormap * cm,
|
||||
struct arc * a)
|
||||
static VOID
|
||||
uncolorchain(cm, a)
|
||||
struct colormap *cm;
|
||||
struct arc *a;
|
||||
{
|
||||
struct colordesc *cd = &cm->cd[a->co];
|
||||
struct arc *aa;
|
||||
|
||||
aa = cd->arcs;
|
||||
if (aa == a) /* easy case */
|
||||
if (aa == a) /* easy case */
|
||||
cd->arcs = a->colorchain;
|
||||
else
|
||||
{
|
||||
else {
|
||||
for (; aa != NULL && aa->colorchain != a; aa = aa->colorchain)
|
||||
continue;
|
||||
assert(aa != NULL);
|
||||
aa->colorchain = a->colorchain;
|
||||
}
|
||||
a->colorchain = NULL; /* paranoia */
|
||||
a->colorchain = NULL; /* paranoia */
|
||||
}
|
||||
|
||||
/*
|
||||
* singleton - is this character in its own color?
|
||||
- singleton - is this character in its own color?
|
||||
^ static int singleton(struct colormap *, pchr c);
|
||||
*/
|
||||
static int /* predicate */
|
||||
singleton(struct colormap * cm,
|
||||
chr c)
|
||||
static int /* predicate */
|
||||
singleton(cm, c)
|
||||
struct colormap *cm;
|
||||
pchr c;
|
||||
{
|
||||
color co; /* color of c */
|
||||
color co; /* color of c */
|
||||
|
||||
co = GETCOLOR(cm, c);
|
||||
if (cm->cd[co].nchrs == 1 && cm->cd[co].sub == NOSUB)
|
||||
@@ -647,81 +632,90 @@ singleton(struct colormap * cm,
|
||||
}
|
||||
|
||||
/*
|
||||
* rainbow - add arcs of all full colors (but one) between specified states
|
||||
- rainbow - add arcs of all full colors (but one) between specified states
|
||||
^ static VOID rainbow(struct nfa *, struct colormap *, int, pcolor,
|
||||
^ struct state *, struct state *);
|
||||
*/
|
||||
static void
|
||||
rainbow(struct nfa * nfa,
|
||||
struct colormap * cm,
|
||||
int type,
|
||||
pcolor but, /* COLORLESS if no exceptions */
|
||||
struct state * from,
|
||||
struct state * to)
|
||||
static VOID
|
||||
rainbow(nfa, cm, type, but, from, to)
|
||||
struct nfa *nfa;
|
||||
struct colormap *cm;
|
||||
int type;
|
||||
pcolor but; /* COLORLESS if no exceptions */
|
||||
struct state *from;
|
||||
struct state *to;
|
||||
{
|
||||
struct colordesc *cd;
|
||||
struct colordesc *end = CDEND(cm);
|
||||
color co;
|
||||
color co;
|
||||
|
||||
for (cd = cm->cd, co = 0; cd < end && !CISERR(); cd++, co++)
|
||||
if (!UNUSEDCOLOR(cd) && cd->sub != co && co != but &&
|
||||
!(cd->flags & PSEUDO))
|
||||
!(cd->flags&PSEUDO))
|
||||
newarc(nfa, type, co, from, to);
|
||||
}
|
||||
|
||||
/*
|
||||
* colorcomplement - add arcs of complementary colors
|
||||
*
|
||||
- colorcomplement - add arcs of complementary colors
|
||||
* The calling sequence ought to be reconciled with cloneouts().
|
||||
^ static VOID colorcomplement(struct nfa *, struct colormap *, int,
|
||||
^ struct state *, struct state *, struct state *);
|
||||
*/
|
||||
static void
|
||||
colorcomplement(struct nfa * nfa,
|
||||
struct colormap * cm,
|
||||
int type,
|
||||
struct state * of, /* complements of this guy's PLAIN
|
||||
* outarcs */
|
||||
struct state * from,
|
||||
struct state * to)
|
||||
static VOID
|
||||
colorcomplement(nfa, cm, type, of, from, to)
|
||||
struct nfa *nfa;
|
||||
struct colormap *cm;
|
||||
int type;
|
||||
struct state *of; /* complements of this guy's PLAIN outarcs */
|
||||
struct state *from;
|
||||
struct state *to;
|
||||
{
|
||||
struct colordesc *cd;
|
||||
struct colordesc *end = CDEND(cm);
|
||||
color co;
|
||||
color co;
|
||||
|
||||
assert(of != from);
|
||||
for (cd = cm->cd, co = 0; cd < end && !CISERR(); cd++, co++)
|
||||
if (!UNUSEDCOLOR(cd) && !(cd->flags & PSEUDO))
|
||||
if (!UNUSEDCOLOR(cd) && !(cd->flags&PSEUDO))
|
||||
if (findarc(of, PLAIN, co) == NULL)
|
||||
newarc(nfa, type, co, from, to);
|
||||
}
|
||||
|
||||
|
||||
|
||||
#ifdef REG_DEBUG
|
||||
/*
|
||||
^ #ifdef REG_DEBUG
|
||||
*/
|
||||
|
||||
/*
|
||||
* dumpcolors - debugging output
|
||||
- dumpcolors - debugging output
|
||||
^ static VOID dumpcolors(struct colormap *, FILE *);
|
||||
*/
|
||||
static void
|
||||
dumpcolors(struct colormap * cm,
|
||||
FILE *f)
|
||||
static VOID
|
||||
dumpcolors(cm, f)
|
||||
struct colormap *cm;
|
||||
FILE *f;
|
||||
{
|
||||
struct colordesc *cd;
|
||||
struct colordesc *end;
|
||||
color co;
|
||||
chr c;
|
||||
char *has;
|
||||
color co;
|
||||
chr c;
|
||||
char *has;
|
||||
|
||||
fprintf(f, "max %ld\n", (long) cm->max);
|
||||
fprintf(f, "max %ld\n", (long)cm->max);
|
||||
if (NBYTS > 1)
|
||||
fillcheck(cm, cm->tree, 0, f);
|
||||
end = CDEND(cm);
|
||||
for (cd = cm->cd + 1, co = 1; cd < end; cd++, co++) /* skip 0 */
|
||||
if (!UNUSEDCOLOR(cd))
|
||||
{
|
||||
for (cd = cm->cd + 1, co = 1; cd < end; cd++, co++) /* skip 0 */
|
||||
if (!UNUSEDCOLOR(cd)) {
|
||||
assert(cd->nchrs > 0);
|
||||
has = (cd->block != NULL) ? "#" : "";
|
||||
if (cd->flags & PSEUDO)
|
||||
fprintf(f, "#%2ld%s(ps): ", (long) co, has);
|
||||
if (cd->flags&PSEUDO)
|
||||
fprintf(f, "#%2ld%s(ps): ", (long)co, has);
|
||||
else
|
||||
fprintf(f, "#%2ld%s(%2d): ", (long) co,
|
||||
has, cd->nchrs);
|
||||
fprintf(f, "#%2ld%s(%2d): ", (long)co,
|
||||
has, cd->nchrs);
|
||||
/* it's hard to do this more efficiently */
|
||||
for (c = CHR_MIN; c < CHR_MAX; c++)
|
||||
if (GETCOLOR(cm, c) == co)
|
||||
@@ -734,47 +728,51 @@ dumpcolors(struct colormap * cm,
|
||||
}
|
||||
|
||||
/*
|
||||
* fillcheck - check proper filling of a tree
|
||||
- fillcheck - check proper filling of a tree
|
||||
^ static VOID fillcheck(struct colormap *, union tree *, int, FILE *);
|
||||
*/
|
||||
static void
|
||||
fillcheck(struct colormap * cm,
|
||||
union tree * tree,
|
||||
int level, /* level number (top == 0) of this block */
|
||||
FILE *f)
|
||||
static VOID
|
||||
fillcheck(cm, tree, level, f)
|
||||
struct colormap *cm;
|
||||
union tree *tree;
|
||||
int level; /* level number (top == 0) of this block */
|
||||
FILE *f;
|
||||
{
|
||||
int i;
|
||||
int i;
|
||||
union tree *t;
|
||||
union tree *fillt = &cm->tree[level + 1];
|
||||
union tree *fillt = &cm->tree[level+1];
|
||||
|
||||
assert(level < NBYTS - 1); /* this level has pointers */
|
||||
for (i = BYTTAB - 1; i >= 0; i--)
|
||||
{
|
||||
assert(level < NBYTS-1); /* this level has pointers */
|
||||
for (i = BYTTAB-1; i >= 0; i--) {
|
||||
t = tree->tptr[i];
|
||||
if (t == NULL)
|
||||
fprintf(f, "NULL found in filled tree!\n");
|
||||
else if (t == fillt)
|
||||
{
|
||||
}
|
||||
else if (level < NBYTS - 2) /* more pointer blocks below */
|
||||
fillcheck(cm, t, level + 1, f);
|
||||
{}
|
||||
else if (level < NBYTS-2) /* more pointer blocks below */
|
||||
fillcheck(cm, t, level+1, f);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* dumpchr - print a chr
|
||||
*
|
||||
- dumpchr - print a chr
|
||||
* Kind of char-centric but works well enough for debug use.
|
||||
^ static VOID dumpchr(pchr, FILE *);
|
||||
*/
|
||||
static void
|
||||
dumpchr(chr c,
|
||||
FILE *f)
|
||||
static VOID
|
||||
dumpchr(c, f)
|
||||
pchr c;
|
||||
FILE *f;
|
||||
{
|
||||
if (c == '\\')
|
||||
fprintf(f, "\\\\");
|
||||
else if (c > ' ' && c <= '~')
|
||||
putc((char) c, f);
|
||||
putc((char)c, f);
|
||||
else
|
||||
fprintf(f, "\\u%04lx", (long) c);
|
||||
fprintf(f, "\\u%04lx", (long)c);
|
||||
}
|
||||
|
||||
#endif /* REG_DEBUG */
|
||||
/*
|
||||
^ #endif
|
||||
*/
|
||||
#endif /* ifdef REG_DEBUG */
|
||||
|
||||
Reference in New Issue
Block a user