universe@21: /*
universe@21: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
universe@21: *
universe@35: * Copyright 2016 Mike Becker. All rights reserved.
universe@21: *
universe@21: * Redistribution and use in source and binary forms, with or without
universe@21: * modification, are permitted provided that the following conditions are met:
universe@21: *
universe@21: * 1. Redistributions of source code must retain the above copyright
universe@21: * notice, this list of conditions and the following disclaimer.
universe@21: *
universe@21: * 2. Redistributions in binary form must reproduce the above copyright
universe@21: * notice, this list of conditions and the following disclaimer in the
universe@21: * documentation and/or other materials provided with the distribution.
universe@21: *
universe@21: * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
universe@21: * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
universe@21: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
universe@21: * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
universe@21: * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
universe@21: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
universe@21: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
universe@21: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
universe@21: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
universe@21: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
universe@21: * POSSIBILITY OF SUCH DAMAGE.
universe@21: *
universe@21: */
universe@21:
universe@21: #include "ccodegen.h"
universe@21:
universe@21: const char* ckeywords[] = {
universe@21: "auto", "break", "case", "char", "const", "continue", "default", "do",
universe@21: "double", "else", "enum", "extern", "float", "for", "goto", "if", "int",
universe@21: "long", "register", "return", "short", "signed", "sizeof", "static",
universe@21: "struct", "switch", "typedef", "union", "unsigned", "void", "volatile",
universe@21: "while", NULL
universe@21: };
universe@21:
universe@51: void c_highlighter(char *src, UcxBuffer *dest, HighlighterData *hd) {
universe@51: /* reset buffers without clearing them */
universe@51: hd->primary_buffer->size = hd->primary_buffer->pos = 0;
universe@51: hd->secondary_buffer->size = hd->secondary_buffer->pos = 0;
universe@47:
universe@51: /* alias the buffers for better handling */
universe@51: UcxBuffer *wbuf = hd->primary_buffer;
universe@51: UcxBuffer *ifilebuf = hd->secondary_buffer;
universe@47:
universe@51: /* local information */
universe@48: size_t sp = (size_t)-1;
universe@21: int isstring = 0, iscomment = 0, isinclude = 0, parseinclude = 0;
universe@28: char quote = '\0';
universe@21: int isescaping = 0;
universe@31:
universe@31: /* continue a multi line comment highlighting */
universe@51: if (hd->multiline_comment) {
universe@21: iscomment = 1;
universe@48: ucx_buffer_puts(dest, "");
universe@21: continue;
universe@21: } else if (!iscomment && (src[sp+1] == '/' || src[sp+1] == '*')) {
universe@21: iscomment = 1;
universe@51: hd->multiline_comment = (src[sp+1] == '*');
universe@48: ucx_buffer_puts(dest, "\n");
universe@48: } else {
universe@48: put_htmlescaped(dest, c);
universe@21: }
universe@21: } else if (isinclude) {
universe@21: if (c == '<') {
universe@48: ucx_buffer_puts(dest,
universe@48: "<");
universe@21: } else if (c == '\"') {
universe@21: if (parseinclude) {
universe@51: ucx_buffer_puts(dest, "\">");
universe@51: ucx_buffer_write(ifilebuf->space, 1, ifilebuf->size, dest);
universe@51: ucx_buffer_puts(dest, "\"");
universe@21: parseinclude = 0;
universe@21: } else {
universe@48: ucx_buffer_puts(dest,
universe@48: "') {
universe@48: ucx_buffer_puts(dest, ">");
universe@21: } else {
universe@21: if (parseinclude) {
universe@51: ucx_buffer_putc(ifilebuf, c);
universe@21: }
universe@48: put_htmlescaped(dest, c);
universe@21: }
universe@21: } else {
universe@21: /* strings */
universe@21: if (!isescaping && (c == '\'' || c == '\"')) {
universe@21: if (isstring) {
universe@48: put_htmlescaped(dest, c);
universe@28: if (c == quote) {
universe@28: isstring = 0;
universe@48: ucx_buffer_puts(dest, "");
universe@28: } else {
universe@48: put_htmlescaped(dest, c);
universe@28: }
universe@21: } else {
universe@28: isstring = 1;
universe@28: quote = c;
universe@48: ucx_buffer_puts(dest, "");
universe@48: put_htmlescaped(dest, c);
universe@21: }
universe@21: } else {
universe@21: if (isstring) {
universe@48: put_htmlescaped(dest, c);
universe@51: } else if (!isalnum(c) && c!='_' && c!='#') {
universe@51: /* write buffered word, if any */
universe@51: if (wbuf->size > 0) {
universe@51: sstr_t word = sstrn(wbuf->space, wbuf->size);
universe@21: int closespan = 1;
universe@47: sstr_t typesuffix = ST("_t");
universe@47: if (check_keyword(word, ckeywords)) {
universe@48: ucx_buffer_puts(dest,
universe@48: "");
universe@47: } else if (sstrsuffix(word, typesuffix)) {
universe@48: ucx_buffer_puts(dest,
universe@29: "");
universe@47: } else if (word.ptr[0] == '#') {
universe@47: isinclude = !sstrcmp(word, S("#include"));
universe@48: ucx_buffer_puts(dest,
universe@29: "");
universe@47: } else if (check_capsonly(word)) {
universe@48: ucx_buffer_puts(dest,
universe@29: "");
universe@21: } else {
universe@21: closespan = 0;
universe@21: }
universe@48: put_htmlescapedstr(dest, word);
universe@21: if (closespan) {
universe@48: ucx_buffer_puts(dest, "");
universe@21: }
universe@21: }
universe@51: wbuf->pos = wbuf->size = 0; /* reset word buffer */
universe@51:
universe@51: /* write current character */
universe@48: put_htmlescaped(dest, c);
universe@21: } else {
universe@51: /* buffer the current word */
universe@51: ucx_buffer_putc(wbuf, c);
universe@21: }
universe@21: }
universe@21:
universe@21: isescaping = !isescaping & (c == '\\');
universe@21: }
universe@39: } while (c != '\n');
universe@21: }