]> git.cameronkatri.com Git - mandoc.git/blobdiff - manpath.c
handle the non-portable GNU-style \[charNN], \[charNNN] character
[mandoc.git] / manpath.c
index 9446ea6971a42cc81e477b6161e107ae02215848..54f7a6b110ade0ed84d2c7ed78ba0c6652536217 100644 (file)
--- a/manpath.c
+++ b/manpath.c
@@ -1,6 +1,6 @@
-/*     $Id: manpath.c,v 1.25 2015/05/07 12:08:13 schwarze Exp $        */
+/*     $Id: manpath.c,v 1.35 2017/07/01 09:47:30 schwarze Exp $ */
 /*
- * Copyright (c) 2011, 2014, 2015 Ingo Schwarze <schwarze@openbsd.org>
+ * Copyright (c) 2011, 2014, 2015, 2017 Ingo Schwarze <schwarze@openbsd.org>
  * Copyright (c) 2011 Kristaps Dzonsons <kristaps@bsd.lv>
  *
  * Permission to use, copy, modify, and distribute this software for any
@@ -21,6 +21,9 @@
 #include <sys/stat.h>
 
 #include <ctype.h>
+#if HAVE_ERR
+#include <err.h>
+#endif
 #include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
@@ -38,52 +41,6 @@ void
 manconf_parse(struct manconf *conf, const char *file,
                char *defp, char *auxp)
 {
-#if HAVE_MANPATH
-       char             cmd[(PATH_MAX * 3) + 20];
-       FILE            *stream;
-       char            *buf;
-       size_t           sz, bsz;
-
-       strlcpy(cmd, "manpath", sizeof(cmd));
-       if (file) {
-               strlcat(cmd, " -C ", sizeof(cmd));
-               strlcat(cmd, file, sizeof(cmd));
-       }
-       if (auxp) {
-               strlcat(cmd, " -m ", sizeof(cmd));
-               strlcat(cmd, auxp, sizeof(cmd));
-       }
-       if (defp) {
-               strlcat(cmd, " -M ", sizeof(cmd));
-               strlcat(cmd, defp, sizeof(cmd));
-       }
-
-       /* Open manpath(1).  Ignore errors. */
-
-       stream = popen(cmd, "r");
-       if (NULL == stream)
-               return;
-
-       buf = NULL;
-       bsz = 0;
-
-       /* Read in as much output as we can. */
-
-       do {
-               buf = mandoc_realloc(buf, bsz + 1024);
-               sz = fread(buf + bsz, 1, 1024, stream);
-               bsz += sz;
-       } while (sz > 0);
-
-       if ( ! ferror(stream) && feof(stream) &&
-                       bsz && '\n' == buf[bsz - 1]) {
-               buf[bsz - 1] = '\0';
-               manpath_parseline(&conf->manpath, buf, 1);
-       }
-
-       free(buf);
-       pclose(stream);
-#else
        char            *insert;
 
        /* Always prepend -m. */
@@ -132,7 +89,13 @@ manconf_parse(struct manconf *conf, const char *file,
 
        /* MANPATH overrides man.conf(5) completely. */
        manpath_parseline(&conf->manpath, defp, 0);
-#endif
+}
+
+void
+manpath_base(struct manpaths *dirs)
+{
+       char path_base[] = MANPATH_BASE;
+       manpath_parseline(dirs, path_base, 0);
 }
 
 /*
@@ -163,10 +126,8 @@ manpath_add(struct manpaths *dirs, const char *dir, int complain)
        size_t           i;
 
        if (NULL == (cp = realpath(dir, buf))) {
-               if (complain) {
-                       fputs("manpath: ", stderr);
-                       perror(dir);
-               }
+               if (complain)
+                       warn("manpath: %s", dir);
                return;
        }
 
@@ -175,10 +136,8 @@ manpath_add(struct manpaths *dirs, const char *dir, int complain)
                        return;
 
        if (stat(cp, &sb) == -1) {
-               if (complain) {
-                       fputs("manpath: ", stderr);
-                       perror(dir);
-               }
+               if (complain)
+                       warn("manpath: %s", dir);
                return;
        }
 
@@ -210,28 +169,32 @@ manconf_file(struct manconf *conf, const char *file)
        char manpath_default[] = MANPATH_DEFAULT;
 
        FILE            *stream;
-       char            *cp, *ep;
-       size_t           len, tok;
+       char            *line, *cp, *ep;
+       size_t           linesz, tok, toklen;
+       ssize_t          linelen;
 
        if ((stream = fopen(file, "r")) == NULL)
                goto out;
 
-       while ((cp = fgetln(stream, &len)) != NULL) {
-               ep = cp + len;
-               if (ep[-1] != '\n')
-                       break;
-               *--ep = '\0';
+       line = NULL;
+       linesz = 0;
+
+       while ((linelen = getline(&line, &linesz, stream)) != -1) {
+               cp = line;
+               ep = cp + linelen - 1;
+               while (ep > cp && isspace((unsigned char)*ep))
+                       *ep-- = '\0';
                while (isspace((unsigned char)*cp))
                        cp++;
-               if (*cp == '#')
+               if (cp == ep || *cp == '#')
                        continue;
 
                for (tok = 0; tok < sizeof(toks)/sizeof(toks[0]); tok++) {
-                       len = strlen(toks[tok]);
-                       if (cp + len < ep &&
-                           isspace((unsigned char)cp[len]) &&
-                           !strncmp(cp, toks[tok], len)) {
-                               cp += len;
+                       toklen = strlen(toks[tok]);
+                       if (cp + toklen < ep &&
+                           isspace((unsigned char)cp[toklen]) &&
+                           strncmp(cp, toks[tok], toklen) == 0) {
+                               cp += toklen;
                                while (isspace((unsigned char)*cp))
                                        cp++;
                                break;
@@ -251,12 +214,13 @@ manconf_file(struct manconf *conf, const char *file)
                        *manpath_default = '\0';
                        break;
                case 1:  /* output */
-                       manconf_output(&conf->output, cp);
+                       manconf_output(&conf->output, cp, 1);
                        break;
                default:
                        break;
                }
        }
+       free(line);
        fclose(stream);
 
 out:
@@ -264,15 +228,17 @@ out:
                manpath_parseline(&conf->manpath, manpath_default, 0);
 }
 
-void
-manconf_output(struct manoutput *conf, const char *cp)
+int
+manconf_output(struct manoutput *conf, const char *cp, int fromfile)
 {
        const char *const toks[] = {
            "includes", "man", "paper", "style",
-           "indent", "width", "fragment", "mdoc"
+           "indent", "width", "fragment", "mdoc", "noval"
        };
 
-       size_t   len, tok;
+       const char      *errstr;
+       char            *oldval;
+       size_t           len, tok;
 
        for (tok = 0; tok < sizeof(toks)/sizeof(toks[0]); tok++) {
                len = strlen(toks[tok]);
@@ -287,41 +253,81 @@ manconf_output(struct manoutput *conf, const char *cp)
                }
        }
 
-       if (tok < 6 && *cp == '\0')
-               return;
+       if (tok < 6 && *cp == '\0') {
+               warnx("-O %s=?: Missing argument value", toks[tok]);
+               return -1;
+       }
+       if ((tok == 6 || tok == 7) && *cp != '\0') {
+               warnx("-O %s: Does not take a value: %s", toks[tok], cp);
+               return -1;
+       }
 
        switch (tok) {
        case 0:
-               if (conf->includes == NULL)
-                       conf->includes = mandoc_strdup(cp);
-               break;
+               if (conf->includes != NULL) {
+                       oldval = mandoc_strdup(conf->includes);
+                       break;
+               }
+               conf->includes = mandoc_strdup(cp);
+               return 0;
        case 1:
-               if (conf->man == NULL)
-                       conf->man = mandoc_strdup(cp);
-               break;
+               if (conf->man != NULL) {
+                       oldval = mandoc_strdup(conf->man);
+                       break;
+               }
+               conf->man = mandoc_strdup(cp);
+               return 0;
        case 2:
-               if (conf->paper == NULL)
-                       conf->paper = mandoc_strdup(cp);
-               break;
+               if (conf->paper != NULL) {
+                       oldval = mandoc_strdup(conf->paper);
+                       break;
+               }
+               conf->paper = mandoc_strdup(cp);
+               return 0;
        case 3:
-               if (conf->style == NULL)
-                       conf->style = mandoc_strdup(cp);
-               break;
+               if (conf->style != NULL) {
+                       oldval = mandoc_strdup(conf->style);
+                       break;
+               }
+               conf->style = mandoc_strdup(cp);
+               return 0;
        case 4:
-               if (conf->indent == 0)
-                       conf->indent = strtonum(cp, 0, 1000, NULL);
-               break;
+               if (conf->indent) {
+                       mandoc_asprintf(&oldval, "%zu", conf->indent);
+                       break;
+               }
+               conf->indent = strtonum(cp, 0, 1000, &errstr);
+               if (errstr == NULL)
+                       return 0;
+               warnx("-O indent=%s is %s", cp, errstr);
+               return -1;
        case 5:
-               if (conf->width == 0)
-                       conf->width = strtonum(cp, 58, 1000, NULL);
-               break;
+               if (conf->width) {
+                       mandoc_asprintf(&oldval, "%zu", conf->width);
+                       break;
+               }
+               conf->width = strtonum(cp, 1, 1000, &errstr);
+               if (errstr == NULL)
+                       return 0;
+               warnx("-O width=%s is %s", cp, errstr);
+               return -1;
        case 6:
                conf->fragment = 1;
-               break;
+               return 0;
        case 7:
                conf->mdoc = 1;
-               break;
+               return 0;
+       case 8:
+               conf->noval = 1;
+               return 0;
        default:
-               break;
+               if (fromfile)
+                       warnx("-O %s: Bad argument", cp);
+               return -1;
        }
+       if (fromfile == 0)
+               warnx("-O %s=%s: Option already set to %s",
+                   toks[tok], cp, oldval);
+       free(oldval);
+       return -1;
 }