-/* $Id: main.c,v 1.235 2015/04/18 16:34:25 schwarze Exp $ */
+/* $Id: main.c,v 1.244 2015/07/28 18:38:55 schwarze Exp $ */
/*
* Copyright (c) 2008-2012 Kristaps Dzonsons <kristaps@bsd.lv>
* Copyright (c) 2010-2012, 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
#include "roff.h"
#include "mdoc.h"
#include "man.h"
+#include "tag.h"
#include "main.h"
#include "manconf.h"
#include "mansearch.h"
static void fs_search(const struct mansearch *,
const struct manpaths *, int, char**,
struct manpage **, size_t *);
-static void handle_sigpipe(int);
static int koptions(int *, char *);
#if HAVE_SQLITE3
int mandocdb(int, char**);
const char *, int, int, const char *);
static void parse(struct curparse *, int, const char *);
static void passthrough(const char *, int, int);
-static pid_t spawn_pager(void);
+static pid_t spawn_pager(struct tag_files *);
static int toptions(struct curparse *, char *);
static void usage(enum argmode) __attribute__((noreturn));
static int woptions(struct curparse *, char *);
struct manconf conf;
struct curparse curp;
struct mansearch search;
+ struct tag_files *tag_files;
char *auxpaths;
char *defos;
unsigned char *uc;
int fd;
int show_usage;
int options;
+ int use_pager;
int c;
- pid_t pager_pid; /* 0: don't use; 1: not yet spawned. */
if (argc < 1)
progname = "mandoc";
options = MPARSE_SO | MPARSE_UTF8 | MPARSE_LATIN1;
defos = NULL;
- pager_pid = 1;
+ use_pager = 1;
+ tag_files = NULL;
show_usage = 0;
outmode = OUTMODE_DEF;
conf_file = optarg;
break;
case 'c':
- pager_pid = 0;
+ use_pager = 0;
break;
case 'f':
search.argmode = ARG_WORD;
break;
case 'h':
conf.output.synopsisonly = 1;
- pager_pid = 0;
+ use_pager = 0;
outmode = OUTMODE_ALL;
break;
case 'I':
switch (search.argmode) {
case ARG_FILE:
outmode = OUTMODE_ALL;
- pager_pid = 0;
+ use_pager = 0;
break;
case ARG_NAME:
outmode = OUTMODE_ONE;
sz = 0;
#endif
- if (sz == 0 && search.argmode == ARG_NAME)
- fs_search(&search, &conf.manpath,
- argc, argv, &res, &sz);
+ if (sz == 0) {
+ if (search.argmode == ARG_NAME)
+ fs_search(&search, &conf.manpath,
+ argc, argv, &res, &sz);
+ else
+ fprintf(stderr,
+ "%s: nothing appropriate\n",
+ progname);
+ }
if (sz == 0) {
rc = MANDOCLEVEL_BADARG;
if (search.argmode == ARG_FILE && ! moptions(&options, auxpaths))
return((int)MANDOCLEVEL_BADARG);
+ if (use_pager && ! isatty(STDOUT_FILENO))
+ use_pager = 0;
+
curp.mchars = mchars_alloc();
curp.mp = mparse_alloc(options, curp.wlevel, mmsg,
curp.mchars, defos);
mparse_keep(curp.mp);
if (argc < 1) {
- if (pager_pid == 1 && isatty(STDOUT_FILENO))
- pager_pid = spawn_pager();
+ if (use_pager)
+ tag_files = tag_init();
parse(&curp, STDIN_FILENO, "<stdin>");
}
rc = rctmp;
if (fd != -1) {
- if (pager_pid == 1 && isatty(STDOUT_FILENO))
- pager_pid = spawn_pager();
+ if (use_pager) {
+ tag_files = tag_init();
+ use_pager = 0;
+ }
if (resp == NULL)
parse(&curp, fd, *argv);
passthrough(resp->file, fd,
conf.output.synopsisonly);
- rctmp = mparse_wait(curp.mp);
- if (rc < rctmp)
- rc = rctmp;
-
if (argc > 1 && curp.outtype <= OUTT_UTF8)
ascii_sepline(curp.outdata);
}
free(defos);
/*
- * If a pager is attached, flush the pipe leading to it
- * and signal end of file such that the user can browse
- * to the end. Then wait for the user to close the pager.
+ * When using a pager, finish writing both temporary files,
+ * fork it, wait for the user to close it, and clean up.
*/
- if (pager_pid != 0 && pager_pid != 1) {
+ if (tag_files != NULL) {
fclose(stdout);
- waitpid(pager_pid, NULL, 0);
+ tag_write();
+ waitpid(spawn_pager(tag_files), NULL, 0);
+ tag_unlink();
}
return((int)rc);
free(file);
}
- mandoc_asprintf(&file, "%s/man%s/%s.*",
+ mandoc_asprintf(&file, "%s/man%s/%s.[01-9]*",
paths->paths[ipath], sec, name);
globres = glob(file, 0, NULL, &globinfo);
if (globres != 0 && globres != GLOB_NOMATCH)
fputc('\n', stderr);
}
-static void
-handle_sigpipe(int signum)
-{
-
- exit((int)rc);
-}
-
static pid_t
-spawn_pager(void)
+spawn_pager(struct tag_files *tag_files)
{
#define MAX_PAGER_ARGS 16
char *argv[MAX_PAGER_ARGS];
const char *pager;
char *cp;
- int fildes[2];
+ size_t cmdlen;
int argc;
pid_t pager_pid;
- if (pipe(fildes) == -1) {
- fprintf(stderr, "%s: pipe: %s\n",
- progname, strerror(errno));
- return(0);
- }
-
- switch (pager_pid = fork()) {
- case -1:
- fprintf(stderr, "%s: fork: %s\n",
- progname, strerror(errno));
- exit((int)MANDOCLEVEL_SYSERR);
- case 0:
- break;
- default:
- close(fildes[0]);
- if (dup2(fildes[1], STDOUT_FILENO) == -1) {
- fprintf(stderr, "%s: dup output: %s\n",
- progname, strerror(errno));
- exit((int)MANDOCLEVEL_SYSERR);
- }
- close(fildes[1]);
- signal(SIGPIPE, handle_sigpipe);
- return(pager_pid);
- }
-
- /* The child process becomes the pager. */
-
- close(fildes[1]);
- if (dup2(fildes[0], STDIN_FILENO) == -1) {
- fprintf(stderr, "%s: dup input: %s\n",
- progname, strerror(errno));
- exit((int)MANDOCLEVEL_SYSERR);
- }
- close(fildes[0]);
-
pager = getenv("MANPAGER");
if (pager == NULL || *pager == '\0')
pager = getenv("PAGER");
*/
argc = 0;
- while (argc + 1 < MAX_PAGER_ARGS) {
+ while (argc + 4 < MAX_PAGER_ARGS) {
argv[argc++] = cp;
cp = strchr(cp, ' ');
if (cp == NULL)
if (*cp == '\0')
break;
}
+
+ /* For more(1) and less(1), use the tag file. */
+
+ if ((cmdlen = strlen(argv[0])) >= 4) {
+ cp = argv[0] + cmdlen - 4;
+ if (strcmp(cp, "less") == 0 || strcmp(cp, "more") == 0) {
+ argv[argc++] = mandoc_strdup("-T");
+ argv[argc++] = tag_files->tfn;
+ }
+ }
+ argv[argc++] = tag_files->ofn;
argv[argc] = NULL;
- /* Hand over to the pager. */
+ switch (pager_pid = fork()) {
+ case -1:
+ fprintf(stderr, "%s: fork: %s\n",
+ progname, strerror(errno));
+ exit((int)MANDOCLEVEL_SYSERR);
+ case 0:
+ break;
+ default:
+ return(pager_pid);
+ }
+
+ /* The child process becomes the pager. */
+ if (dup2(tag_files->ofd, STDOUT_FILENO) == -1) {
+ fprintf(stderr, "pager: stdout: %s\n", strerror(errno));
+ exit((int)MANDOCLEVEL_SYSERR);
+ }
+ close(tag_files->ofd);
+ close(tag_files->tfd);
execvp(argv[0], argv);
- fprintf(stderr, "%s: exec: %s\n",
- progname, strerror(errno));
+ fprintf(stderr, "%s: exec %s: %s\n",
+ progname, argv[0], strerror(errno));
exit((int)MANDOCLEVEL_SYSERR);
}
git.ckatri.com / mandoc.git / blobdiff