diff options
Diffstat (limited to 'contrib/mdocml/demandoc.c')
| -rw-r--r-- | contrib/mdocml/demandoc.c | 257 |
1 files changed, 257 insertions, 0 deletions
diff --git a/contrib/mdocml/demandoc.c b/contrib/mdocml/demandoc.c new file mode 100644 index 0000000..4a7b979 --- /dev/null +++ b/contrib/mdocml/demandoc.c @@ -0,0 +1,257 @@ +/* $Id: demandoc.c,v 1.10 2014/03/19 22:20:43 schwarze Exp $ */ +/* + * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv> + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include <assert.h> +#include <ctype.h> +#include <getopt.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "man.h" +#include "mdoc.h" +#include "mandoc.h" + +static void pline(int, int *, int *, int); +static void pman(const struct man_node *, int *, int *, int); +static void pmandoc(struct mparse *, int, const char *, int); +static void pmdoc(const struct mdoc_node *, int *, int *, int); +static void pstring(const char *, int, int *, int); +static void usage(void); + +static const char *progname; + +int +main(int argc, char *argv[]) +{ + struct mparse *mp; + int ch, i, list; + extern int optind; + + progname = strrchr(argv[0], '/'); + if (progname == NULL) + progname = argv[0]; + else + ++progname; + + mp = NULL; + list = 0; + + while (-1 != (ch = getopt(argc, argv, "ikm:pw"))) + switch (ch) { + case ('i'): + /* FALLTHROUGH */ + case ('k'): + /* FALLTHROUGH */ + case ('m'): + /* FALLTHROUGH */ + case ('p'): + break; + case ('w'): + list = 1; + break; + default: + usage(); + return((int)MANDOCLEVEL_BADARG); + } + + argc -= optind; + argv += optind; + + mp = mparse_alloc(MPARSE_SO, MANDOCLEVEL_FATAL, NULL, NULL); + assert(mp); + + if (0 == argc) + pmandoc(mp, STDIN_FILENO, "<stdin>", list); + + for (i = 0; i < argc; i++) { + mparse_reset(mp); + pmandoc(mp, -1, argv[i], list); + } + + mparse_free(mp); + return((int)MANDOCLEVEL_OK); +} + +static void +usage(void) +{ + + fprintf(stderr, "usage: %s [-w] [files...]\n", progname); +} + +static void +pmandoc(struct mparse *mp, int fd, const char *fn, int list) +{ + struct mdoc *mdoc; + struct man *man; + int line, col; + + if (mparse_readfd(mp, fd, fn) >= MANDOCLEVEL_FATAL) { + fprintf(stderr, "%s: Parse failure\n", fn); + return; + } + + mparse_result(mp, &mdoc, &man, NULL); + line = 1; + col = 0; + + if (mdoc) + pmdoc(mdoc_node(mdoc), &line, &col, list); + else if (man) + pman(man_node(man), &line, &col, list); + else + return; + + if ( ! list) + putchar('\n'); +} + +/* + * Strip the escapes out of a string, emitting the results. + */ +static void +pstring(const char *p, int col, int *colp, int list) +{ + enum mandoc_esc esc; + const char *start, *end; + int emit; + + /* + * Print as many column spaces til we achieve parity with the + * input document. + */ + +again: + if (list && '\0' != *p) { + while (isspace((unsigned char)*p)) + p++; + + while ('\'' == *p || '(' == *p || '"' == *p) + p++; + + emit = isalpha((unsigned char)p[0]) && + isalpha((unsigned char)p[1]); + + for (start = p; '\0' != *p; p++) + if ('\\' == *p) { + p++; + esc = mandoc_escape(&p, NULL, NULL); + if (ESCAPE_ERROR == esc) + return; + emit = 0; + } else if (isspace((unsigned char)*p)) + break; + + end = p - 1; + + while (end > start) + if ('.' == *end || ',' == *end || + '\'' == *end || '"' == *end || + ')' == *end || '!' == *end || + '?' == *end || ':' == *end || + ';' == *end) + end--; + else + break; + + if (emit && end - start >= 1) { + for ( ; start <= end; start++) + if (ASCII_HYPH == *start) + putchar('-'); + else + putchar((unsigned char)*start); + putchar('\n'); + } + + if (isspace((unsigned char)*p)) + goto again; + + return; + } + + while (*colp < col) { + putchar(' '); + (*colp)++; + } + + /* + * Print the input word, skipping any special characters. + */ + while ('\0' != *p) + if ('\\' == *p) { + p++; + esc = mandoc_escape(&p, NULL, NULL); + if (ESCAPE_ERROR == esc) + break; + } else { + putchar((unsigned char )*p++); + (*colp)++; + } +} + +static void +pline(int line, int *linep, int *col, int list) +{ + + if (list) + return; + + /* + * Print out as many lines as needed to reach parity with the + * original input. + */ + + while (*linep < line) { + putchar('\n'); + (*linep)++; + } + + *col = 0; +} + +static void +pmdoc(const struct mdoc_node *p, int *line, int *col, int list) +{ + + for ( ; p; p = p->next) { + if (MDOC_LINE & p->flags) + pline(p->line, line, col, list); + if (MDOC_TEXT == p->type) + pstring(p->string, p->pos, col, list); + if (p->child) + pmdoc(p->child, line, col, list); + } +} + +static void +pman(const struct man_node *p, int *line, int *col, int list) +{ + + for ( ; p; p = p->next) { + if (MAN_LINE & p->flags) + pline(p->line, line, col, list); + if (MAN_TEXT == p->type) + pstring(p->string, p->pos, col, list); + if (p->child) + pman(p->child, line, col, list); + } +} |
