c2html: src/ccodegen.c@534a4ef4143d (annotated)

src/ccodegen.c@534a4ef4143d (annotated)

src/ccodegen.c

Tue, 23 Aug 2016 15:55:02 +0200

author: Mike Becker <universe@uap-core.de>
date: Tue, 23 Aug 2016 15:55:02 +0200
changeset 46: 534a4ef4143d
parent 45: 1f3835182aeb
child 47: c39ecbbca7c0
permissions: -rw-r--r--

refactors highlighter_t and removes abstraction overhead

 /*
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
  *
  * Copyright 2016 Mike Becker. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *   1. Redistributions of source code must retain the above copyright
  *      notice, this list of conditions and the following disclaimer.
  *
  *   2. Redistributions in binary form must reproduce the above copyright
  *      notice, this list of conditions and the following disclaimer in the
  *      documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  * POSSIBILITY OF SUCH DAMAGE.
  *
  */
 #include "ccodegen.h"
 #include <string.h>
 #include <ctype.h>
 const char* ckeywords[] = {
     "auto", "break", "case", "char", "const", "continue", "default", "do",
     "double", "else", "enum", "extern", "float", "for", "goto", "if", "int",
     "long", "register", "return", "short", "signed", "sizeof", "static",
     "struct", "switch", "typedef", "union", "unsigned", "void", "volatile",
     "while", NULL
 };
 #define memcpy_const(darr,doff,str) memcpy(&(darr[doff]), str, sizeof(str)-1); \
                                     dp += sizeof(str)-1
 void cparseline(char *src, UcxBuffer *destbuf, HighlighterData *hltr) {
     /* TODO: workaround for using old code with UcxBuffer */
     char *dest = destbuf->space + destbuf->pos;
     memset(hltr->word, 0, WORDBUF_SIZE);
     size_t wp = 0, ifp = 0, sp = (size_t)-1, dp = 0;
     int isstring = 0, iscomment = 0, isinclude = 0, parseinclude = 0;
     char quote = '\0';
     int isescaping = 0;
     /* continue a multi line comment highlighting */
     if (hltr->iscommentml) {
         iscomment = 1;
         memcpy_const(dest, dp, "<span class=\"c2html-comment\">");
     }
     char c;
     do {
         c = src[++sp];
         if (!c) break;
         /* comments */
         if (!isstring && c == '/') {
             if (hltr->iscommentml && sp > 0 && src[sp-1] == '*') {
                 iscomment = 0;
                 hltr->iscommentml = 0;
                 memcpy_const(dest, dp, "/</span>");
                 continue;
             } else if (!iscomment && (src[sp+1] == '/' || src[sp+1] == '*')) {
                 iscomment = 1;
                 hltr->iscommentml = (src[sp+1] == '*');
                 memcpy_const(dest, dp, "<span class=\"c2html-comment\">");
             }
         }
         if (iscomment) {
             if (c == '\n') {
                 memcpy_const(dest, dp,  "</span>");
             }
             dp = writeescapedchar(dest, dp, c);
         } else if (isinclude) {
             if (c == '<') {
                 memcpy_const(dest, dp, "<span class=\"c2html-stdinclude\">");
                 dp = writeescapedchar(dest, dp, c);
             } else if (c == '\"') {
                 if (parseinclude) {
                     dest[dp++] = '\"';
                     dest[dp++] = '>';
                     memcpy(&(dest[dp]), hltr->includefile, ifp);
                     dp += ifp;
                     dp = writeescapedchar(dest, dp, c);
                     memcpy_const(dest, dp, "</a>");
                     parseinclude = 0;
                 } else {
                     memcpy_const(dest, dp,
                         "<a class=\"c2html-userinclude\" href=");
                     dp = writeescapedchar(dest, dp, c);
                     ifp = 0;
                     hltr->includefile[ifp++] = '\"';
                     parseinclude = 1;
                 }
             } else if (c == '>') {
                 dp = writeescapedchar(dest, dp, c);
                 memcpy_const(dest, dp, "</span>");
             } else {
                 if (parseinclude) {
                     hltr->includefile[ifp++] = c;
                 }
                 dp = writeescapedchar(dest, dp, c);
             }
         } else {
             /* strings */
             if (!isescaping && (c == '\'' || c == '\"')) {
                 if (isstring) {
                     dp = writeescapedchar(dest, dp, c);
                     if (c == quote) {
                         isstring = 0;
                         memcpy_const(dest, dp, "</span>");
                     } else {
                         dp = writeescapedchar(dest, dp, c);
                     }
                 } else {
                     isstring = 1;
                     quote = c;
                     memcpy_const(dest, dp,
                         "<span class=\"c2html-string\">");
                     dp = writeescapedchar(dest, dp, c);
                 }
             } else {
                 if (isstring) {
                     dp = writeescapedchar(dest, dp, c);
                 } else if (!iswordcharacter(c)) {
                     /* interpret word int_t */
                     if (wp > 0 && wp < WORDBUF_SIZE) {
                         int closespan = 1;
                         if (check_keyword(hltr->word, ckeywords)) {
                             memcpy_const(dest, dp,
                                 "<span class=\"c2html-keyword\">");
                         } else if (hltr->word[wp-2] == '_'
                                 && hltr->word[wp-1] == 't') {
                             memcpy_const(dest, dp,
                                 "<span class=\"c2html-type\">");
                         } else if (hltr->word[0] == '#') {
                             isinclude = !strncmp(
                                 "#include", hltr->word, WORDBUF_SIZE);
                             memcpy_const(dest, dp,
                                 "<span class=\"c2html-directive\">");
                         } else if (check_capsonly(hltr->word, wp)) {
                             memcpy_const(dest, dp,
                                 "<span class=\"c2html-macroconst\">");
                         } else {
                             closespan = 0;
                         }
                         for (int i = 0 ; i < wp ; i++) {
                             dp = writeescapedchar(dest, dp, hltr->word[i]);
                         }
                         if (closespan) {
                             memcpy_const(dest, dp, "</span>");
                         }
                     }
                     memset(hltr->word, 0, WORDBUF_SIZE);
                     wp = 0;
                     dp = writeescapedchar(dest, dp, c);
                 } else {
                     /* read word */
                     if (wp < WORDBUF_SIZE) {
                         hltr->word[wp++] = c;
                     } else if (wp == WORDBUF_SIZE) {
                         for (int i = 0 ; i < WORDBUF_SIZE ; i++) {
                             dp = writeescapedchar(dest, dp, hltr->word[i]);
                         }
                         wp++;
                         dp = writeescapedchar(dest, dp, c);
                     } else {
                         dp = writeescapedchar(dest, dp, c);
                     }
                 }
             }
             isescaping = !isescaping & (c == '\\');
         }
     } while (c != '\n');
     dest[dp] = 0;
     /* TODO: workaround */
     destbuf->pos += dp;
     destbuf->size += dp;
 }

Mercurial > hg > c2html / annotate

src/ccodegen.c@534a4ef4143d (annotated)

src/ccodegen.c