version 1.1, 2009/02/21 21:00:06 |
version 1.11, 2009/02/25 13:30:53 |
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/* $Id$ */ |
/* $Id$ */ |
/* |
/* |
* Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se> |
* Copyright (c) 2008 Kristaps Dzonsons <kristaps@kth.se> |
* |
* |
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* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
* PERFORMANCE OF THIS SOFTWARE. |
* PERFORMANCE OF THIS SOFTWARE. |
*/ |
*/ |
#include <sys/stat.h> |
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#include <sys/param.h> |
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#include <assert.h> |
#include <assert.h> |
#include <fcntl.h> |
#include <ctype.h> |
#include <err.h> |
#include <err.h> |
#include <getopt.h> |
#include <getopt.h> |
#include <stdio.h> |
#include <stdio.h> |
#include <stdlib.h> |
#include <stdlib.h> |
#include <string.h> |
#include <string.h> |
#include <unistd.h> |
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#include "mdoc.h" |
#ifndef __OpenBSD__ |
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#include <time.h> |
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#endif |
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#include "mmain.h" |
#include "term.h" |
#include "term.h" |
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#define MD_LINE_SZ (256) /* Max input line size. */ |
#ifdef __NetBSD__ |
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#define xisspace(x) isspace((int)(x)) |
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#else |
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#define xisspace(x) isspace((x)) |
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#endif |
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struct md_parse { |
enum termstyle { |
int warn; /* Warning flags. */ |
STYLE_CLEAR, |
#define MD_WARN_SYNTAX (1 << 0) /* Show syntax warnings. */ |
STYLE_BOLD, |
#define MD_WARN_COMPAT (1 << 1) /* Show compat warnings. */ |
STYLE_UNDERLINE |
#define MD_WARN_ALL (0x03) /* Show all warnings. */ |
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#define MD_WARN_ERR (1 << 2) /* Make warnings->errors. */ |
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int dbg; /* Debug level. */ |
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struct mdoc *mdoc; /* Active parser. */ |
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char *buf; /* Input buffer. */ |
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u_long bufsz; /* Input buffer size. */ |
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char *in; /* Input file name. */ |
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int fdin; /* Input file desc. */ |
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}; |
}; |
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extern char *__progname; |
static void body(struct termp *, |
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const struct mdoc_meta *, |
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const struct mdoc_node *); |
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static void header(struct termp *, |
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const struct mdoc_meta *); |
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static void footer(struct termp *, |
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const struct mdoc_meta *); |
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static void usage(void); |
static void pword(struct termp *, const char *, size_t); |
static int getsopts(struct md_parse *, char *); |
static void pescape(struct termp *, |
static int parse(struct md_parse *); |
const char *, size_t *, size_t); |
static void msg_msg(void *, int, int, const char *); |
static void chara(struct termp *, char); |
static int msg_err(void *, int, int, const char *); |
static void stringa(struct termp *, const char *); |
static int msg_warn(void *, int, int, |
static void style(struct termp *, enum termstyle); |
enum mdoc_warn, const char *); |
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#ifdef __linux__ |
#ifdef __linux__ |
extern int getsubopt(char **, char *const *, char **); |
extern size_t strlcat(char *, const char *, size_t); |
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extern size_t strlcpy(char *, const char *, size_t); |
#endif |
#endif |
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int |
int |
main(int argc, char *argv[]) |
main(int argc, char *argv[]) |
{ |
{ |
struct md_parse p; |
struct mmain *p; |
struct mdoc_cb cb; |
const struct mdoc *mdoc; |
struct stat st; |
struct termp termp; |
int c; |
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extern char *optarg; |
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extern int optind; |
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(void)memset(&p, 0, sizeof(struct md_parse)); |
p = mmain_alloc(); |
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while (-1 != (c = getopt(argc, argv, "vW:"))) |
if ( ! mmain_getopt(p, argc, argv, NULL, NULL, NULL, NULL)) |
switch (c) { |
mmain_exit(p, 1); |
case ('v'): |
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p.dbg++; |
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break; |
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case ('W'): |
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if ( ! getsopts(&p, optarg)) |
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return(0); |
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break; |
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default: |
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usage(); |
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return(0); |
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} |
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argv += optind; |
if (NULL == (mdoc = mmain_mdoc(p))) |
argc -= optind; |
mmain_exit(p, 1); |
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/* Initialise the input file. */ |
termp.maxrmargin = 80; /* XXX */ |
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termp.rmargin = termp.maxrmargin; |
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termp.maxcols = 1024; |
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termp.offset = termp.col = 0; |
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termp.flags = TERMP_NOSPACE; |
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p.in = "-"; |
if (NULL == (termp.buf = malloc(termp.maxcols))) |
p.fdin = STDIN_FILENO; |
err(1, "malloc"); |
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if (argc > 0) { |
header(&termp, mdoc_meta(mdoc)); |
p.in = *argv++; |
body(&termp, mdoc_meta(mdoc), mdoc_node(mdoc)); |
p.fdin = open(p.in, O_RDONLY, 0); |
footer(&termp, mdoc_meta(mdoc)); |
if (-1 == p.fdin) |
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err(1, "%s", p.in); |
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} |
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/* Allocate a buffer to be BUFSIZ/block size. */ |
free(termp.buf); |
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if (-1 == fstat(p.fdin, &st)) { |
mmain_exit(p, 0); |
warn("%s", p.in); |
/* NOTREACHED */ |
p.bufsz = BUFSIZ; |
} |
} else |
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p.bufsz = MAX(st.st_blksize, BUFSIZ); |
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p.buf = malloc(p.bufsz); |
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if (NULL == p.buf) |
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err(1, "malloc"); |
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/* Allocate the parser. */ |
void |
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flushln(struct termp *p) |
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{ |
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size_t i, j, vsz, vis, maxvis; |
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cb.mdoc_err = msg_err; |
/* |
cb.mdoc_warn = msg_warn; |
* First, establish the maximum columns of "visible" content. |
cb.mdoc_msg = msg_msg; |
* This is usually the difference between the right-margin and |
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* an indentation, but can be, for tagged lists or columns, a |
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* small set of values. |
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*/ |
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p.mdoc = mdoc_alloc(&p, &cb); |
assert(p->offset < p->rmargin); |
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maxvis = p->rmargin - p->offset; |
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vis = 0; |
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/* Parse the input file. */ |
/* |
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* If in the standard case (left-justified), then begin with our |
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* indentation, otherwise (columns, etc.) just start spitting |
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* out text. |
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*/ |
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c = parse(&p); |
if ( ! (p->flags & TERMP_NOLPAD)) |
free(p.buf); |
/* LINTED */ |
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for (j = 0; j < p->offset; j++) |
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putchar(' '); |
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if (STDIN_FILENO != p.fdin && -1 == close(p.fdin)) |
/* |
warn("%s", p.in); |
* If we're literal, print out verbatim. |
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*/ |
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if (p->flags & TERMP_LITERAL) { |
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/* FIXME: count non-printing chars. */ |
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for (i = 0; i < p->col; i++) |
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putchar(p->buf[i]); |
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putchar('\n'); |
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p->col = 0; |
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return; |
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} |
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if (0 == c) { |
for (i = 0; i < p->col; i++) { |
mdoc_free(p.mdoc); |
/* |
return(EXIT_FAILURE); |
* Count up visible word characters. Control sequences |
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* (starting with the CSI) aren't counted. |
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*/ |
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assert( ! xisspace(p->buf[i])); |
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/* LINTED */ |
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for (j = i, vsz = 0; j < p->col; j++) { |
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if (xisspace(p->buf[j])) |
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break; |
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else if (27 == p->buf[j]) { |
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assert(j + 4 <= p->col); |
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j += 3; |
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} else |
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vsz++; |
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} |
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assert(vsz > 0); |
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/* |
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* If a word is too long and we're within a line, put it |
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* on the next line. Puke if we're being asked to write |
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* something that will exceed the right margin (i.e., |
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* from a fresh line or when we're not allowed to break |
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* the line with TERMP_NOBREAK). |
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*/ |
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if (vis && vis + vsz >= maxvis) { |
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/* FIXME */ |
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if (p->flags & TERMP_NOBREAK) |
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errx(1, "word breaks right margin"); |
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putchar('\n'); |
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for (j = 0; j < p->offset; j++) |
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putchar(' '); |
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vis = 0; |
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} else if (vis + vsz >= maxvis) |
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/* FIXME */ |
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errx(1, "word breaks right margin"); |
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/* |
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* Write out the word and a trailing space. Omit the |
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* space if we're the last word in the line. |
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*/ |
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for ( ; i < p->col; i++) { |
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if (xisspace(p->buf[i])) |
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break; |
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putchar(p->buf[i]); |
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} |
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vis += vsz; |
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if (i < p->col) { |
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putchar(' '); |
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vis++; |
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} |
} |
} |
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/* If the parse succeeded, print it out. */ |
/* |
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* If we're not to right-marginalise it (newline), then instead |
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* pad to the right margin and stay off. |
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*/ |
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termprint(mdoc_node(p.mdoc), mdoc_meta(p.mdoc)); |
if (p->flags & TERMP_NOBREAK) { |
mdoc_free(p.mdoc); |
for ( ; vis < maxvis; vis++) |
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putchar(' '); |
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} else |
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putchar('\n'); |
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return(EXIT_SUCCESS); |
p->col = 0; |
} |
} |
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static int |
void |
getsopts(struct md_parse *p, char *arg) |
newln(struct termp *p) |
{ |
{ |
char *v; |
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char *toks[] = { "all", "compat", |
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"syntax", "error", NULL }; |
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while (*arg) |
/* |
switch (getsubopt(&arg, toks, &v)) { |
* A newline only breaks an existing line; it won't assert |
case (0): |
* vertical space. |
p->warn |= MD_WARN_ALL; |
*/ |
break; |
p->flags |= TERMP_NOSPACE; |
case (1): |
if (0 == p->col) |
p->warn |= MD_WARN_COMPAT; |
return; |
break; |
flushln(p); |
case (2): |
p->flags &= ~TERMP_NOLPAD; |
p->warn |= MD_WARN_SYNTAX; |
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break; |
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case (3): |
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p->warn |= MD_WARN_ERR; |
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break; |
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default: |
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usage(); |
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return(0); |
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} |
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return(1); |
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} |
} |
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static int |
void |
parse(struct md_parse *p) |
vspace(struct termp *p) |
{ |
{ |
ssize_t sz, i; |
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size_t pos; |
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char line[MD_LINE_SZ]; |
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int lnn; |
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/* |
/* |
* This is a little more complicated than fgets. TODO: have |
* Asserts a vertical space (a full, empty line-break between |
* some benchmarks that show it's faster (note that I want to |
* lines). |
* check many, many manuals simultaneously, so speed is |
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* important). Fill a buffer (sized to the block size) with a |
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* single read, then parse \n-terminated lines into a line |
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* buffer, which is passed to the parser. Hard-code the line |
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* buffer to a particular size -- a reasonable assumption. |
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*/ |
*/ |
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newln(p); |
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putchar('\n'); |
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} |
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for (lnn = 1, pos = 0; ; ) { |
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if (-1 == (sz = read(p->fdin, p->buf, p->bufsz))) { |
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warn("%s", p->in); |
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return(0); |
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} else if (0 == sz) |
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break; |
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for (i = 0; i < sz; i++) { |
static void |
if ('\n' != p->buf[i]) { |
stringa(struct termp *p, const char *s) |
if (pos < sizeof(line)) { |
{ |
line[(int)pos++] = p->buf[(int)i]; |
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continue; |
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} |
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warnx("%s: line %d too long", p->in, lnn); |
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return(0); |
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} |
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line[(int)pos] = 0; |
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if ( ! mdoc_parseln(p->mdoc, lnn, line)) |
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return(0); |
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lnn++; |
/* XXX - speed up if not passing to chara. */ |
pos = 0; |
for ( ; *s; s++) |
} |
chara(p, *s); |
} |
} |
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return(mdoc_endparse(p->mdoc)); |
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static void |
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chara(struct termp *p, char c) |
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{ |
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/* TODO: dynamically expand the buffer. */ |
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if (p->col + 1 >= p->maxcols) |
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errx(1, "line overrun"); |
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p->buf[(p->col)++] = c; |
} |
} |
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static int |
static void |
msg_err(void *arg, int line, int col, const char *msg) |
style(struct termp *p, enum termstyle esc) |
{ |
{ |
struct md_parse *p; |
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p = (struct md_parse *)arg; |
if (p->col + 4 >= p->maxcols) |
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errx(1, "line overrun"); |
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warnx("%s:%d: error: %s (column %d)", |
p->buf[(p->col)++] = 27; |
p->in, line, msg, col); |
p->buf[(p->col)++] = '['; |
return(0); |
switch (esc) { |
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case (STYLE_CLEAR): |
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p->buf[(p->col)++] = '0'; |
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break; |
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case (STYLE_BOLD): |
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p->buf[(p->col)++] = '1'; |
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break; |
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case (STYLE_UNDERLINE): |
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p->buf[(p->col)++] = '4'; |
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break; |
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default: |
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abort(); |
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/* NOTREACHED */ |
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} |
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p->buf[(p->col)++] = 'm'; |
} |
} |
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static void |
static void |
msg_msg(void *arg, int line, int col, const char *msg) |
pescape(struct termp *p, const char *word, size_t *i, size_t len) |
{ |
{ |
struct md_parse *p; |
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p = (struct md_parse *)arg; |
(*i)++; |
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assert(*i < len); |
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if (0 == p->dbg) |
if ('(' == word[*i]) { |
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/* Two-character escapes. */ |
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(*i)++; |
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assert(*i + 1 < len); |
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if ('r' == word[*i] && 'B' == word[*i + 1]) |
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chara(p, ']'); |
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else if ('l' == word[*i] && 'B' == word[*i + 1]) |
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chara(p, '['); |
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else if ('<' == word[*i] && '-' == word[*i + 1]) |
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stringa(p, "<-"); |
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else if ('-' == word[*i] && '>' == word[*i + 1]) |
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stringa(p, "->"); |
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else if ('l' == word[*i] && 'q' == word[*i + 1]) |
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chara(p, '\"'); |
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else if ('r' == word[*i] && 'q' == word[*i + 1]) |
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chara(p, '\"'); |
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(*i)++; |
return; |
return; |
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warnx("%s:%d: debug: %s (column %d)", |
} else if ('[' != word[*i]) { |
p->in, line, msg, col); |
/* One-character escapes. */ |
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switch (word[*i]) { |
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case ('\\'): |
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/* FALLTHROUGH */ |
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case ('\''): |
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/* FALLTHROUGH */ |
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case ('`'): |
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/* FALLTHROUGH */ |
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case ('-'): |
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/* FALLTHROUGH */ |
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case ('.'): |
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chara(p, word[*i]); |
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default: |
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break; |
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} |
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return; |
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} |
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/* n-character escapes. */ |
} |
} |
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static int |
static void |
msg_warn(void *arg, int line, int col, |
pword(struct termp *p, const char *word, size_t len) |
enum mdoc_warn type, const char *msg) |
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{ |
{ |
struct md_parse *p; |
size_t i; |
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p = (struct md_parse *)arg; |
/*assert(len > 0);*/ /* Can be, if literal. */ |
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switch (type) { |
if ( ! (p->flags & TERMP_NOSPACE) && |
case (WARN_COMPAT): |
! (p->flags & TERMP_LITERAL)) |
if (p->warn & MD_WARN_COMPAT) |
chara(p, ' '); |
break; |
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return(1); |
p->flags &= ~TERMP_NOSPACE; |
case (WARN_SYNTAX): |
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if (p->warn & MD_WARN_SYNTAX) |
if (p->flags & TERMP_BOLD) |
break; |
style(p, STYLE_BOLD); |
return(1); |
if (p->flags & TERMP_UNDERLINE) |
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style(p, STYLE_UNDERLINE); |
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for (i = 0; i < len; i++) { |
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if ('\\' == word[i]) { |
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pescape(p, word, &i, len); |
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continue; |
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} |
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chara(p, word[i]); |
} |
} |
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warnx("%s:%d: warning: %s (column %d)", |
if (p->flags & TERMP_BOLD || |
p->in, line, msg, col); |
p->flags & TERMP_UNDERLINE) |
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style(p, STYLE_CLEAR); |
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} |
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if ( ! (p->warn & MD_WARN_ERR)) |
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return(1); |
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warnx("%s: considering warnings as errors", __progname); |
void |
return(0); |
word(struct termp *p, const char *word) |
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{ |
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size_t i, j, len; |
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if (p->flags & TERMP_LITERAL) { |
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pword(p, word, strlen(word)); |
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return; |
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} |
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len = strlen(word); |
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assert(len > 0); |
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if (mdoc_isdelim(word)) { |
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if ( ! (p->flags & TERMP_IGNDELIM)) |
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p->flags |= TERMP_NOSPACE; |
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p->flags &= ~TERMP_IGNDELIM; |
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} |
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/* LINTED */ |
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for (j = i = 0; i < len; i++) { |
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if ( ! xisspace(word[i])) { |
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j++; |
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continue; |
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} |
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if (0 == j) |
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continue; |
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assert(i >= j); |
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pword(p, &word[i - j], j); |
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j = 0; |
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} |
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if (j > 0) { |
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assert(i >= j); |
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pword(p, &word[i - j], j); |
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} |
} |
} |
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static void |
static void |
usage(void) |
body(struct termp *p, const struct mdoc_meta *meta, |
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const struct mdoc_node *node) |
{ |
{ |
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int dochild; |
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struct termpair pair; |
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warnx("usage: %s [-v] [-Wwarn...] [infile]", __progname); |
/* Pre-processing. */ |
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dochild = 1; |
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pair.type = 0; |
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pair.offset = pair.rmargin = 0; |
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pair.flag = 0; |
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if (MDOC_TEXT != node->type) { |
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if (termacts[node->tok].pre) |
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if ( ! (*termacts[node->tok].pre)(p, &pair, meta, node)) |
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dochild = 0; |
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} else /* MDOC_TEXT == node->type */ |
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word(p, node->data.text.string); |
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/* Children. */ |
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if (TERMPAIR_FLAG & pair.type) |
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p->flags |= pair.flag; |
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if (dochild && node->child) |
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body(p, meta, node->child); |
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if (TERMPAIR_FLAG & pair.type) |
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p->flags &= ~pair.flag; |
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/* Post-processing. */ |
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if (MDOC_TEXT != node->type) |
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if (termacts[node->tok].post) |
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(*termacts[node->tok].post)(p, &pair, meta, node); |
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/* Siblings. */ |
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if (node->next) |
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body(p, meta, node->next); |
} |
} |
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static void |
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footer(struct termp *p, const struct mdoc_meta *meta) |
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{ |
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struct tm *tm; |
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char *buf, *os; |
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size_t sz, osz, ssz, i; |
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|
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if (NULL == (buf = malloc(p->rmargin))) |
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err(1, "malloc"); |
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if (NULL == (os = malloc(p->rmargin))) |
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err(1, "malloc"); |
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tm = localtime(&meta->date); |
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#ifdef __OpenBSD__ |
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if (NULL == strftime(buf, p->rmargin, "%B %d, %Y", tm)) |
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#else |
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if (0 == strftime(buf, p->rmargin, "%B %d, %Y", tm)) |
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#endif |
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err(1, "strftime"); |
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osz = strlcpy(os, meta->os, p->rmargin); |
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sz = strlen(buf); |
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ssz = sz + osz + 1; |
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|
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if (ssz > p->rmargin) { |
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ssz -= p->rmargin; |
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assert(ssz <= osz); |
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os[osz - ssz] = 0; |
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ssz = 1; |
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} else |
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ssz = p->rmargin - ssz + 1; |
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|
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printf("\n"); |
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printf("%s", os); |
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for (i = 0; i < ssz; i++) |
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printf(" "); |
|
|
|
printf("%s\n", buf); |
|
fflush(stdout); |
|
|
|
free(buf); |
|
free(os); |
|
} |
|
|
|
|
|
static void |
|
header(struct termp *p, const struct mdoc_meta *meta) |
|
{ |
|
char *buf, *title; |
|
const char *pp, *msec; |
|
size_t ssz, tsz, ttsz, i;; |
|
|
|
if (NULL == (buf = malloc(p->rmargin))) |
|
err(1, "malloc"); |
|
if (NULL == (title = malloc(p->rmargin))) |
|
err(1, "malloc"); |
|
|
|
if (NULL == (pp = mdoc_vol2a(meta->vol))) |
|
switch (meta->msec) { |
|
case (MSEC_1): |
|
/* FALLTHROUGH */ |
|
case (MSEC_6): |
|
/* FALLTHROUGH */ |
|
case (MSEC_7): |
|
pp = mdoc_vol2a(VOL_URM); |
|
break; |
|
case (MSEC_8): |
|
pp = mdoc_vol2a(VOL_SMM); |
|
break; |
|
case (MSEC_2): |
|
/* FALLTHROUGH */ |
|
case (MSEC_3): |
|
/* FALLTHROUGH */ |
|
case (MSEC_4): |
|
/* FALLTHROUGH */ |
|
case (MSEC_5): |
|
pp = mdoc_vol2a(VOL_PRM); |
|
break; |
|
case (MSEC_9): |
|
pp = mdoc_vol2a(VOL_KM); |
|
break; |
|
default: |
|
/* FIXME: capitalise. */ |
|
if (NULL == (pp = mdoc_msec2a(meta->msec))) |
|
pp = mdoc_msec2a(MSEC_local); |
|
break; |
|
} |
|
assert(pp); |
|
|
|
tsz = strlcpy(buf, pp, p->rmargin); |
|
assert(tsz < p->rmargin); |
|
|
|
if ((pp = mdoc_arch2a(meta->arch))) { |
|
tsz = strlcat(buf, " (", p->rmargin); |
|
assert(tsz < p->rmargin); |
|
tsz = strlcat(buf, pp, p->rmargin); |
|
assert(tsz < p->rmargin); |
|
tsz = strlcat(buf, ")", p->rmargin); |
|
assert(tsz < p->rmargin); |
|
} |
|
|
|
ttsz = strlcpy(title, meta->title, p->rmargin); |
|
|
|
if (NULL == (msec = mdoc_msec2a(meta->msec))) |
|
msec = ""; |
|
|
|
ssz = (2 * (ttsz + 2 + strlen(msec))) + tsz + 2; |
|
|
|
if (ssz > p->rmargin) { |
|
if ((ssz -= p->rmargin) % 2) |
|
ssz++; |
|
ssz /= 2; |
|
|
|
assert(ssz <= ttsz); |
|
title[ttsz - ssz] = 0; |
|
ssz = 1; |
|
} else |
|
ssz = ((p->rmargin - ssz) / 2) + 1; |
|
|
|
printf("%s(%s)", title, msec); |
|
|
|
for (i = 0; i < ssz; i++) |
|
printf(" "); |
|
|
|
printf("%s", buf); |
|
|
|
for (i = 0; i < ssz; i++) |
|
printf(" "); |
|
|
|
printf("%s(%s)\n", title, msec); |
|
fflush(stdout); |
|
|
|
free(title); |
|
free(buf); |
|
} |