changeset
formatted with 4 spaces
Fri, 30 Aug 2013 10:51:49 +0200
- author
- Mike Becker <universe@uap-core.de>
- date
- Fri, 30 Aug 2013 10:51:49 +0200
- changeset 19
- 2e812df2b231
- parent 18
- 5085b57e3fd6
- child 20
- ebbf0776c1bc
formatted with 4 spaces
| src/c2html.c | file | annotate | diff | comparison | revisions |
--- a/src/c2html.c Wed Jul 10 18:12:13 2013 +0200 +++ b/src/c2html.c Fri Aug 30 10:51:49 2013 +0200 @@ -38,409 +38,413 @@ #define WORDBUF_SIZE 64 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 + "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 }; const char* jkeywords[] = { - "abstract", "continue", "for", "new", "switch", "assert", "default", "goto", - "package", "synchronized", "boolean", "do", "if", "private", "this", - "break", "double", "implements", "protected", "throw", "byte", "else", - "import", "public", "throws", "case", "enum", "instanceof", "return", - "transient", "catch", "extends", "int", "short", "try", "char", "final", - "interface", "static", "void", "class", "finally", "long", "strictfp", - "volatile", "const", "float", "native", "super", "while", NULL + "abstract", "continue", "for", "new", "switch", "assert", "default", "goto", + "package", "synchronized", "boolean", "do", "if", "private", "this", + "break", "double", "implements", "protected", "throw", "byte", "else", + "import", "public", "throws", "case", "enum", "instanceof", "return", + "transient", "catch", "extends", "int", "short", "try", "char", "final", + "interface", "static", "void", "class", "finally", "long", "strictfp", + "volatile", "const", "float", "native", "super", "while", NULL }; #define iswordcharacter(c) (isalnum(c) || c=='_' || c=='#' || c=='@') int isctype(char *word, size_t len) { - return (word[len-2] == '_' && word[len-1] == 't'); + return (word[len-2] == '_' && word[len-1] == 't'); } int iscdirective(char *word) { - return (word[0] == '#'); + return (word[0] == '#'); } int isjtype(char *word, size_t len) { - return isupper(word[0]); + return isupper(word[0]); } int isjdirective(char *word) { - return word[0] == '@'; + return word[0] == '@'; } typedef struct { - const char** keywords; - int(*istype)(char*,size_t); - int(*isdirective)(char*); + const char** keywords; + int(*istype)(char*,size_t); + int(*isdirective)(char*); } highlighter_t; typedef struct { - char* outfilename; - char* infilename; - int highlight; + char* outfilename; + char* infilename; + int highlight; } settings_t; typedef struct { - size_t count; - size_t capacity; - size_t maxlinewidth; - char** lines; + size_t count; + size_t capacity; + size_t maxlinewidth; + char** lines; } inputfile_t; inputfile_t *inputfilebuffer(size_t capacity) { - inputfile_t *inputfile = (inputfile_t*) malloc(sizeof(inputfile_t)); - inputfile->lines = (char**) malloc(capacity * sizeof(char*)); - inputfile->capacity = capacity; - inputfile->count = 0; - inputfile->maxlinewidth = 0; - - return inputfile; + inputfile_t *inputfile = (inputfile_t*) malloc(sizeof(inputfile_t)); + inputfile->lines = (char**) malloc(capacity * sizeof(char*)); + inputfile->capacity = capacity; + inputfile->count = 0; + inputfile->maxlinewidth = 0; + + return inputfile; } void addline(inputfile_t *inputfile, char* line, size_t width) { - char *l = (char*) malloc(width+1); - memcpy(l, line, width); - l[width] = 0; - if (inputfile->count >= inputfile->capacity) { - inputfile->capacity <<= 1; - inputfile->lines = realloc(inputfile->lines, inputfile->capacity); - } - inputfile->lines[inputfile->count] = l; - inputfile->maxlinewidth = - width > inputfile->maxlinewidth ? width : inputfile->maxlinewidth; - inputfile->count++; + char *l = (char*) malloc(width+1); + memcpy(l, line, width); + l[width] = 0; + if (inputfile->count >= inputfile->capacity) { + inputfile->capacity <<= 1; + inputfile->lines = realloc(inputfile->lines, inputfile->capacity); + } + inputfile->lines[inputfile->count] = l; + inputfile->maxlinewidth = + width > inputfile->maxlinewidth ? width : inputfile->maxlinewidth; + inputfile->count++; } void freeinputfilebuffer(inputfile_t *inputfile) { - for (int i = 0 ; i < inputfile->count ; i++) { - free(inputfile->lines[i]); - } - free(inputfile->lines); - free(inputfile); + for (int i = 0 ; i < inputfile->count ; i++) { + free(inputfile->lines[i]); + } + free(inputfile->lines); + free(inputfile); } inputfile_t *readinput(char *filename) { - int fd = open(filename, O_RDONLY); - if (fd == -1) return NULL; - - inputfile_t *inputfile = inputfilebuffer(512); - - char buf[INPUTBUF_SIZE]; - ssize_t r; - - size_t maxlinewidth = 256; - char *line = (char*) malloc(maxlinewidth); - size_t col = 0; - - while ((r = read(fd, buf, INPUTBUF_SIZE)) > 0) { - for (size_t i = 0 ; i < r ; i++) { - if (col >= maxlinewidth-4) { - maxlinewidth <<= 1; - line = realloc(line, maxlinewidth); - } + int fd = open(filename, O_RDONLY); + if (fd == -1) return NULL; + + inputfile_t *inputfile = inputfilebuffer(512); + + char buf[INPUTBUF_SIZE]; + ssize_t r; + + size_t maxlinewidth = 256; + char *line = (char*) malloc(maxlinewidth); + size_t col = 0; - if (buf[i] == '\n') { - line[col++] = '\n'; - line[col] = 0; - addline(inputfile, line, col); - col = 0; - } else { - line[col++] = buf[i]; - } + while ((r = read(fd, buf, INPUTBUF_SIZE)) > 0) { + for (size_t i = 0 ; i < r ; i++) { + if (col >= maxlinewidth-4) { + maxlinewidth <<= 1; + line = realloc(line, maxlinewidth); + } + + if (buf[i] == '\n') { + line[col++] = '\n'; + line[col] = 0; + addline(inputfile, line, col); + col = 0; + } else { + line[col++] = buf[i]; + } + } } - } - - free(line); - - close(fd); - - return inputfile; + + free(line); + + close(fd); + + return inputfile; } size_t writeescapedchar(char *dest, size_t dp, char c) { - if (c == '>') { - dest[dp++] = '&'; dest[dp++] = 'g'; - dest[dp++] = 't'; dest[dp++] = ';'; - } else if (c == '<') { - dest[dp++] = '&'; dest[dp++] = 'l'; - dest[dp++] = 't'; dest[dp++] = ';'; - } else { - dest[dp++] = c; - } - - return dp; + if (c == '>') { + dest[dp++] = '&'; dest[dp++] = 'g'; dest[dp++] = 't'; dest[dp++] = ';'; + } else if (c == '<') { + dest[dp++] = '&'; dest[dp++] = 'l'; dest[dp++] = 't'; dest[dp++] = ';'; + } else { + dest[dp++] = c; + } + + return dp; } int iskeyword(char *word, const char** keywords) { - for (int i = 0 ; keywords[i] ; i++) { - if (strncmp(keywords[i], word, WORDBUF_SIZE) == 0) { - return 1; + for (int i = 0 ; keywords[i] ; i++) { + if (strncmp(keywords[i], word, WORDBUF_SIZE) == 0) { + return 1; + } } - } - return 0; + return 0; } int iscapsonly(char *word, size_t wp) { - for (size_t i = 0 ; i < wp ; i++) { - if (!isupper(word[i]) && word[i] != '_') { - return 0; + for (size_t i = 0 ; i < wp ; i++) { + if (!isupper(word[i]) && word[i] != '_') { + return 0; + } } - } - return 1; + return 1; } void parseline(char *src, char *dest, highlighter_t *highlighter) { - size_t sp = 0, dp = 0; - /* indent */ - while (isspace(src[sp])) { - dest[dp++] = src[sp++]; - } - - static char word[WORDBUF_SIZE]; - static char includefile[FILENAME_MAX]; - - memset(word, 0, WORDBUF_SIZE); - size_t wp = 0, ifp = 0; - int isstring = 0, iscomment = 0, isinclude = 0, parseinclude = 0; - static int iscommentml; - int isescaping = 0; - - if (iscommentml) { - iscomment = 1; - memcpy(&(dest[dp]), "<span class=\"c2html-comment\">", 29); - dp += 29; - } + size_t sp = 0, dp = 0; + /* indent */ + while (isspace(src[sp])) { + dest[dp++] = src[sp++]; + } + + static char word[WORDBUF_SIZE]; + static char includefile[FILENAME_MAX]; - for (char c = src[sp] ; c ; c=src[++sp]) { - /* comments */ - if (c == '/') { - if (iscommentml && sp > 0 && src[sp-1] == '*') { - iscomment = 0; - iscommentml = 0; - memcpy(&(dest[dp]), "/</span>", 8); - dp += 8; - continue; - } else if (!iscomment && (src[sp+1] == '/' || src[sp+1] == '*')) { + memset(word, 0, WORDBUF_SIZE); + size_t wp = 0, ifp = 0; + int isstring = 0, iscomment = 0, isinclude = 0, parseinclude = 0; + static int iscommentml; + int isescaping = 0; + + if (iscommentml) { iscomment = 1; - iscommentml = (src[sp+1] == '*'); memcpy(&(dest[dp]), "<span class=\"c2html-comment\">", 29); dp += 29; - } } - - if (iscomment) { - if (c == '\n') { - memcpy(&(dest[dp]), "</span>", 7); - dp += 7; - } - dp = writeescapedchar(dest, dp, c); - } else if (isinclude) { - if (c == '<') { - memcpy(&(dest[dp]), "<span class=\"c2html-stdinclude\">", 32); - dp += 32; - dp = writeescapedchar(dest, dp, c); - } else if (c == '\"') { - if (parseinclude) { - dest[dp++] = '\"'; - dest[dp++] = '>'; - memcpy(&(dest[dp]), includefile, ifp); - dp += ifp; - - dp = writeescapedchar(dest, dp, c); - memcpy(&(dest[dp]), "</a>", 4); - dp += 4; - parseinclude = 0; - } else { - memcpy(&(dest[dp]), "<a class=\"c2html-userinclude\" href=", 35); - dp += 35; - dp = writeescapedchar(dest, dp, c); - ifp = 0; - includefile[ifp++] = '\"'; - parseinclude = 1; + + for (char c = src[sp] ; c ; c=src[++sp]) { + /* comments */ + if (c == '/') { + if (iscommentml && sp > 0 && src[sp-1] == '*') { + iscomment = 0; + iscommentml = 0; + memcpy(&(dest[dp]), "/</span>", 8); + dp += 8; + continue; + } else if (!iscomment && (src[sp+1] == '/' || src[sp+1] == '*')) { + iscomment = 1; + iscommentml = (src[sp+1] == '*'); + memcpy(&(dest[dp]), "<span class=\"c2html-comment\">", 29); + dp += 29; + } } - } else if (c == '>') { - dp = writeescapedchar(dest, dp, c); - memcpy(&(dest[dp]), "</span>", 7); - dp += 7; - } else { - if (parseinclude) { - includefile[ifp++] = c; - } - dp = writeescapedchar(dest, dp, c); - } - } else { - /* strings */ - if (!isescaping && (c == '\'' || c == '\"')) { - isstring ^= 1; - if (isstring) { - memcpy(&(dest[dp]), "<span class=\"c2html-string\">", 28); - dp += 28; - dp = writeescapedchar(dest, dp, c); + + if (iscomment) { + if (c == '\n') { + memcpy(&(dest[dp]), "</span>", 7); + dp += 7; + } + dp = writeescapedchar(dest, dp, c); + } else if (isinclude) { + if (c == '<') { + memcpy(&(dest[dp]), "<span class=\"c2html-stdinclude\">", 32); + dp += 32; + dp = writeescapedchar(dest, dp, c); + } else if (c == '\"') { + if (parseinclude) { + dest[dp++] = '\"'; + dest[dp++] = '>'; + memcpy(&(dest[dp]), includefile, ifp); + dp += ifp; + + dp = writeescapedchar(dest, dp, c); + memcpy(&(dest[dp]), "</a>", 4); + dp += 4; + parseinclude = 0; + } else { + memcpy(&(dest[dp]), + "<a class=\"c2html-userinclude\" href=", 35); + dp += 35; + dp = writeescapedchar(dest, dp, c); + ifp = 0; + includefile[ifp++] = '\"'; + parseinclude = 1; + } + } else if (c == '>') { + dp = writeescapedchar(dest, dp, c); + memcpy(&(dest[dp]), "</span>", 7); + dp += 7; + } else { + if (parseinclude) { + includefile[ifp++] = c; + } + dp = writeescapedchar(dest, dp, c); + } } else { - dp = writeescapedchar(dest, dp, c); - memcpy(&(dest[dp]), "</span>", 7); - dp += 7; - } - } 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 (iskeyword(word, highlighter->keywords)) { - memcpy(&(dest[dp]), "<span class=\"c2html-keyword\">", 29); - dp += 29; - } else if (highlighter->istype(word, wp)) { - memcpy(&(dest[dp]), "<span class=\"c2html-type\">", 26); - dp += 26; - } else if (highlighter->isdirective(word)) { - isinclude = !strncmp("#include", word, WORDBUF_SIZE); - memcpy(&(dest[dp]), "<span class=\"c2html-directive\">", 31); - dp += 31; - } else if (iscapsonly(word, wp)) { - memcpy(&(dest[dp]), "<span class=\"c2html-macroconst\">", 32); - dp += 32; + /* strings */ + if (!isescaping && (c == '\'' || c == '\"')) { + isstring ^= 1; + if (isstring) { + memcpy(&(dest[dp]), "<span class=\"c2html-string\">", 28); + dp += 28; + dp = writeescapedchar(dest, dp, c); + } else { + dp = writeescapedchar(dest, dp, c); + memcpy(&(dest[dp]), "</span>", 7); + dp += 7; + } } else { - closespan = 0; + 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 (iskeyword(word, highlighter->keywords)) { + memcpy(&(dest[dp]), + "<span class=\"c2html-keyword\">", 29); + dp += 29; + } else if (highlighter->istype(word, wp)) { + memcpy(&(dest[dp]), + "<span class=\"c2html-type\">", 26); + dp += 26; + } else if (highlighter->isdirective(word)) { + isinclude = !strncmp( + "#include", word, WORDBUF_SIZE); + memcpy(&(dest[dp]), + "<span class=\"c2html-directive\">", 31); + dp += 31; + } else if (iscapsonly(word, wp)) { + memcpy(&(dest[dp]), + "<span class=\"c2html-macroconst\">", 32); + dp += 32; + } else { + closespan = 0; + } + for (int i = 0 ; i < wp ; i++) { + dp = writeescapedchar(dest, dp, word[i]); + } + if (closespan) { + memcpy(&(dest[dp]), "</span>", 7); + dp += 7; + } + } + memset(word, 0, WORDBUF_SIZE); + wp = 0; + dp = writeescapedchar(dest, dp, c); + } else { + /* read word */ + if (wp < WORDBUF_SIZE) { + word[wp++] = c; + } else if (wp == WORDBUF_SIZE) { + for (int i = 0 ; i < WORDBUF_SIZE ; i++) { + dp = writeescapedchar(dest, dp, word[i]); + } + wp++; + dp = writeescapedchar(dest, dp, c); + } else { + dp = writeescapedchar(dest, dp, c); + } + } } - for (int i = 0 ; i < wp ; i++) { - dp = writeescapedchar(dest, dp, word[i]); - } - if (closespan) { - memcpy(&(dest[dp]), "</span>", 7); - dp += 7; - } - } - memset(word, 0, WORDBUF_SIZE); - wp = 0; - dp = writeescapedchar(dest, dp, c); - } else { - /* read word */ - if (wp < WORDBUF_SIZE) { - word[wp++] = c; - } else if (wp == WORDBUF_SIZE) { - for (int i = 0 ; i < WORDBUF_SIZE ; i++) { - dp = writeescapedchar(dest, dp, word[i]); - } - wp++; - dp = writeescapedchar(dest, dp, c); - } else { - dp = writeescapedchar(dest, dp, c); - } + + isescaping = !isescaping & (c == '\\'); } - } - - isescaping = !isescaping & (c == '\\'); } - } - dest[dp] = 0; + dest[dp] = 0; } void printhelp() { - printf("Formats source code using HTML.\n\nUsage:\n" - " c2html [Options] FILE\n\n" - " Options:\n" - " -h Prints this help message\n" - " -j Highlight Java instead of C source code\n" - " -o <output> Output file (if not specified, stdout is used)\n" - " -p Disable highlighting (plain text)\n" - "\n"); - - + printf("Formats source code using HTML.\n\nUsage:\n" + " c2html [Options] FILE\n\n" + " Options:\n" + " -h Prints this help message\n" + " -j Highlight Java instead of C source code\n" + " -o <output> Output file (stdout, if not specified)\n" + " -p Disable highlighting (plain text)\n" + "\n"); + + } int lnint(size_t lnc) { - int w = 1, p = 1; - while ((p*=10) < lnc) w++; - return w; + int w = 1, p = 1; + while ((p*=10) < lnc) w++; + return w; } int main(int argc, char** argv) { - - settings_t settings; - settings.outfilename = NULL; - settings.highlight = 1; - - highlighter_t highlighter; - highlighter.isdirective = iscdirective; - highlighter.istype = isctype; - highlighter.keywords = ckeywords; - - char optc; - while ((optc = getopt(argc, argv, "hjo:p")) != -1) { - switch (optc) { - case 'o': - if (!(optarg[0] == '-' && optarg[1] == 0)) { - settings.outfilename = optarg; + + settings_t settings; + settings.outfilename = NULL; + settings.highlight = 1; + + highlighter_t highlighter; + highlighter.isdirective = iscdirective; + highlighter.istype = isctype; + highlighter.keywords = ckeywords; + + char optc; + while ((optc = getopt(argc, argv, "hjo:p")) != -1) { + switch (optc) { + case 'o': + if (!(optarg[0] == '-' && optarg[1] == 0)) { + settings.outfilename = optarg; + } + break; + case 'j': + highlighter.isdirective = isjdirective; + highlighter.istype = isjtype; + highlighter.keywords = jkeywords; + break; + case 'p': + settings.highlight = 0; + break; + case 'h': + printhelp(); + return 0; + default: + return 1; } - break; - case 'j': - highlighter.isdirective = isjdirective; - highlighter.istype = isjtype; - highlighter.keywords = jkeywords; - break; - case 'p': - settings.highlight = 0; - break; - case 'h': + } + + if (optind != argc-1) { printhelp(); - return 0; - default: return 1; - } - } + } else { + settings.infilename = argv[optind]; - if (optind != argc-1) { - printhelp(); - return 1; - } else { - settings.infilename = argv[optind]; - - inputfile_t *inputfile = readinput(settings.infilename); - if (inputfile) { - FILE *fout; - char *line; - if (settings.highlight) { - line = (char*) malloc(inputfile->maxlinewidth*64); - } else { - line = NULL; - } - if (settings.outfilename) { - fout = fopen(settings.outfilename, "w"); - } else { - fout = stdout; - } - fprintf(fout, "<pre>\n"); - int lnw = lnint(inputfile->count); - for (int i = 0 ; i < inputfile->count ; i++) { - if (settings.highlight) { - parseline(inputfile->lines[i], line, &highlighter); - } else { - line = inputfile->lines[i]; + inputfile_t *inputfile = readinput(settings.infilename); + if (inputfile) { + FILE *fout; + char *line; + if (settings.highlight) { + line = (char*) malloc(inputfile->maxlinewidth*64); + } else { + line = NULL; + } + if (settings.outfilename) { + fout = fopen(settings.outfilename, "w"); + } else { + fout = stdout; + } + fprintf(fout, "<pre>\n"); + int lnw = lnint(inputfile->count); + for (int i = 0 ; i < inputfile->count ; i++) { + if (settings.highlight) { + parseline(inputfile->lines[i], line, &highlighter); + } else { + line = inputfile->lines[i]; + } + fprintf(fout, "<span class=\"c2html-lineno\">%*d:</span> %s", + lnw, i+1, line); + } + if (settings.highlight) { + free(line); + } + fprintf(fout, "</pre>\n"); + + if (fout != stdout) { + fclose(fout); + } + + freeinputfilebuffer(inputfile); } - fprintf(fout, "<span class=\"c2html-lineno\">%*d:</span> %s", - lnw, i+1, line); - } - if (settings.highlight) { - free(line); - } - fprintf(fout, "</pre>\n"); - - if (fout != stdout) { - fclose(fout); - } - - freeinputfilebuffer(inputfile); + + return 0; } - - return 0; - } }
