src/ccodegen.c@534a4ef4143d
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
1 /*
2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
3 *
4 * Copyright 2016 Mike Becker. All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 *
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26 * POSSIBILITY OF SUCH DAMAGE.
27 *
28 */
30 #include "ccodegen.h"
31 #include <string.h>
32 #include <ctype.h>
34 const char* ckeywords[] = {
35 "auto", "break", "case", "char", "const", "continue", "default", "do",
36 "double", "else", "enum", "extern", "float", "for", "goto", "if", "int",
37 "long", "register", "return", "short", "signed", "sizeof", "static",
38 "struct", "switch", "typedef", "union", "unsigned", "void", "volatile",
39 "while", NULL
40 };
42 #define memcpy_const(darr,doff,str) memcpy(&(darr[doff]), str, sizeof(str)-1); \
43 dp += sizeof(str)-1
45 void cparseline(char *src, UcxBuffer *destbuf, HighlighterData *hltr) {
46 /* TODO: workaround for using old code with UcxBuffer */
47 char *dest = destbuf->space + destbuf->pos;
49 memset(hltr->word, 0, WORDBUF_SIZE);
50 size_t wp = 0, ifp = 0, sp = (size_t)-1, dp = 0;
51 int isstring = 0, iscomment = 0, isinclude = 0, parseinclude = 0;
52 char quote = '\0';
53 int isescaping = 0;
55 /* continue a multi line comment highlighting */
56 if (hltr->iscommentml) {
57 iscomment = 1;
58 memcpy_const(dest, dp, "<span class=\"c2html-comment\">");
59 }
61 char c;
62 do {
63 c = src[++sp];
64 if (!c) break;
66 /* comments */
67 if (!isstring && c == '/') {
68 if (hltr->iscommentml && sp > 0 && src[sp-1] == '*') {
69 iscomment = 0;
70 hltr->iscommentml = 0;
71 memcpy_const(dest, dp, "/</span>");
72 continue;
73 } else if (!iscomment && (src[sp+1] == '/' || src[sp+1] == '*')) {
74 iscomment = 1;
75 hltr->iscommentml = (src[sp+1] == '*');
76 memcpy_const(dest, dp, "<span class=\"c2html-comment\">");
77 }
78 }
80 if (iscomment) {
81 if (c == '\n') {
82 memcpy_const(dest, dp, "</span>");
83 }
84 dp = writeescapedchar(dest, dp, c);
85 } else if (isinclude) {
86 if (c == '<') {
87 memcpy_const(dest, dp, "<span class=\"c2html-stdinclude\">");
88 dp = writeescapedchar(dest, dp, c);
89 } else if (c == '\"') {
90 if (parseinclude) {
91 dest[dp++] = '\"';
92 dest[dp++] = '>';
93 memcpy(&(dest[dp]), hltr->includefile, ifp);
94 dp += ifp;
96 dp = writeescapedchar(dest, dp, c);
97 memcpy_const(dest, dp, "</a>");
98 parseinclude = 0;
99 } else {
100 memcpy_const(dest, dp,
101 "<a class=\"c2html-userinclude\" href=");
102 dp = writeescapedchar(dest, dp, c);
103 ifp = 0;
104 hltr->includefile[ifp++] = '\"';
105 parseinclude = 1;
106 }
107 } else if (c == '>') {
108 dp = writeescapedchar(dest, dp, c);
109 memcpy_const(dest, dp, "</span>");
110 } else {
111 if (parseinclude) {
112 hltr->includefile[ifp++] = c;
113 }
114 dp = writeescapedchar(dest, dp, c);
115 }
116 } else {
117 /* strings */
118 if (!isescaping && (c == '\'' || c == '\"')) {
119 if (isstring) {
120 dp = writeescapedchar(dest, dp, c);
121 if (c == quote) {
122 isstring = 0;
123 memcpy_const(dest, dp, "</span>");
124 } else {
125 dp = writeescapedchar(dest, dp, c);
126 }
127 } else {
128 isstring = 1;
129 quote = c;
130 memcpy_const(dest, dp,
131 "<span class=\"c2html-string\">");
132 dp = writeescapedchar(dest, dp, c);
133 }
134 } else {
135 if (isstring) {
136 dp = writeescapedchar(dest, dp, c);
137 } else if (!iswordcharacter(c)) {
138 /* interpret word int_t */
139 if (wp > 0 && wp < WORDBUF_SIZE) {
140 int closespan = 1;
141 if (check_keyword(hltr->word, ckeywords)) {
142 memcpy_const(dest, dp,
143 "<span class=\"c2html-keyword\">");
144 } else if (hltr->word[wp-2] == '_'
145 && hltr->word[wp-1] == 't') {
146 memcpy_const(dest, dp,
147 "<span class=\"c2html-type\">");
148 } else if (hltr->word[0] == '#') {
149 isinclude = !strncmp(
150 "#include", hltr->word, WORDBUF_SIZE);
151 memcpy_const(dest, dp,
152 "<span class=\"c2html-directive\">");
153 } else if (check_capsonly(hltr->word, wp)) {
154 memcpy_const(dest, dp,
155 "<span class=\"c2html-macroconst\">");
156 } else {
157 closespan = 0;
158 }
159 for (int i = 0 ; i < wp ; i++) {
160 dp = writeescapedchar(dest, dp, hltr->word[i]);
161 }
162 if (closespan) {
163 memcpy_const(dest, dp, "</span>");
164 }
165 }
166 memset(hltr->word, 0, WORDBUF_SIZE);
167 wp = 0;
168 dp = writeescapedchar(dest, dp, c);
169 } else {
170 /* read word */
171 if (wp < WORDBUF_SIZE) {
172 hltr->word[wp++] = c;
173 } else if (wp == WORDBUF_SIZE) {
174 for (int i = 0 ; i < WORDBUF_SIZE ; i++) {
175 dp = writeescapedchar(dest, dp, hltr->word[i]);
176 }
177 wp++;
178 dp = writeescapedchar(dest, dp, c);
179 } else {
180 dp = writeescapedchar(dest, dp, c);
181 }
182 }
183 }
185 isescaping = !isescaping & (c == '\\');
186 }
187 } while (c != '\n');
188 dest[dp] = 0;
190 /* TODO: workaround */
191 destbuf->pos += dp;
192 destbuf->size += dp;
193 }
