Thu, 25 Aug 2016 12:16:57 +0200
replaces stack buffers with UCX buffers
/* * 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" 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 }; void c_highlighter(char *src, UcxBuffer *dest, HighlighterData *hd) { /* reset buffers without clearing them */ hd->primary_buffer->size = hd->primary_buffer->pos = 0; hd->secondary_buffer->size = hd->secondary_buffer->pos = 0; /* alias the buffers for better handling */ UcxBuffer *wbuf = hd->primary_buffer; UcxBuffer *ifilebuf = hd->secondary_buffer; /* local information */ size_t sp = (size_t)-1; int isstring = 0, iscomment = 0, isinclude = 0, parseinclude = 0; char quote = '\0'; int isescaping = 0; /* continue a multi line comment highlighting */ if (hd->multiline_comment) { iscomment = 1; ucx_buffer_puts(dest, "<span class=\"c2html-comment\">"); } char c; do { c = src[++sp]; if (!c) break; /* comments */ if (!isstring && c == '/') { if (hd->multiline_comment && sp > 0 && src[sp-1] == '*') { iscomment = 0; hd->multiline_comment = 0; ucx_buffer_puts(dest, "/</span>"); continue; } else if (!iscomment && (src[sp+1] == '/' || src[sp+1] == '*')) { iscomment = 1; hd->multiline_comment = (src[sp+1] == '*'); ucx_buffer_puts(dest, "<span class=\"c2html-comment\">"); } } if (iscomment) { if (c == '\n') { ucx_buffer_puts(dest, "</span>\n"); } else { put_htmlescaped(dest, c); } } else if (isinclude) { if (c == '<') { ucx_buffer_puts(dest, "<span class=\"c2html-stdinclude\"><"); } else if (c == '\"') { if (parseinclude) { ucx_buffer_puts(dest, "\">"); ucx_buffer_write(ifilebuf->space, 1, ifilebuf->size, dest); ucx_buffer_puts(dest, "\"</a>"); parseinclude = 0; } else { ucx_buffer_puts(dest, "<a class=\"c2html-userinclude\" href=\""); ucx_buffer_putc(ifilebuf, '\"'); parseinclude = 1; } } else if (c == '>') { ucx_buffer_puts(dest, "></span>"); } else { if (parseinclude) { ucx_buffer_putc(ifilebuf, c); } put_htmlescaped(dest, c); } } else { /* strings */ if (!isescaping && (c == '\'' || c == '\"')) { if (isstring) { put_htmlescaped(dest, c); if (c == quote) { isstring = 0; ucx_buffer_puts(dest, "</span>"); } else { put_htmlescaped(dest, c); } } else { isstring = 1; quote = c; ucx_buffer_puts(dest, "<span class=\"c2html-string\">"); put_htmlescaped(dest, c); } } else { if (isstring) { put_htmlescaped(dest, c); } else if (!isalnum(c) && c!='_' && c!='#') { /* write buffered word, if any */ if (wbuf->size > 0) { sstr_t word = sstrn(wbuf->space, wbuf->size); int closespan = 1; sstr_t typesuffix = ST("_t"); if (check_keyword(word, ckeywords)) { ucx_buffer_puts(dest, "<span class=\"c2html-keyword\">"); } else if (sstrsuffix(word, typesuffix)) { ucx_buffer_puts(dest, "<span class=\"c2html-type\">"); } else if (word.ptr[0] == '#') { isinclude = !sstrcmp(word, S("#include")); ucx_buffer_puts(dest, "<span class=\"c2html-directive\">"); } else if (check_capsonly(word)) { ucx_buffer_puts(dest, "<span class=\"c2html-macroconst\">"); } else { closespan = 0; } put_htmlescapedstr(dest, word); if (closespan) { ucx_buffer_puts(dest, "</span>"); } } wbuf->pos = wbuf->size = 0; /* reset word buffer */ /* write current character */ put_htmlescaped(dest, c); } else { /* buffer the current word */ ucx_buffer_putc(wbuf, c); } } isescaping = !isescaping & (c == '\\'); } } while (c != '\n'); }