X-Git-Url: http://git.silcnet.org/gitweb/?a=blobdiff_plain;f=apps%2Firssi%2Fsrc%2Flib-popt%2Fpopthelp.c;fp=apps%2Firssi%2Fsrc%2Flib-popt%2Fpopthelp.c;h=c1876d74ed18369db56b91e33aea6a9bc5a45c7d;hb=23c5df1c8b0bfe539d3fa65802186e6e09e044aa;hp=0000000000000000000000000000000000000000;hpb=0f9738ce962b8498bbed0a75d5fb6fa127e3577f;p=silc.git

diff --git a/apps/irssi/src/lib-popt/popthelp.c b/apps/irssi/src/lib-popt/popthelp.c
new file mode 100644
index 00000000..c1876d74
--- /dev/null
+++ b/apps/irssi/src/lib-popt/popthelp.c
@@ -0,0 +1,301 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 4 -*- */
+
+/* (C) 1998 Red Hat Software, Inc. -- Licensing details are in the COPYING
+   file accompanying popt source distributions, available from 
+   ftp://ftp.redhat.com/pub/code/popt */
+
+#include "common.h"
+
+#include "popt.h"
+#include "poptint.h"
+
+static void displayArgs(poptContext con, enum poptCallbackReason foo, 
+			struct poptOption * key, 
+			const char * arg, void * data) {
+    if (key->shortName== '?')
+	poptPrintHelp(con, stdout, 0);
+    else
+	poptPrintUsage(con, stdout, 0);
+    exit(0);
+}
+
+struct poptOption poptHelpOptions[] = {
+    { NULL, '\0', POPT_ARG_CALLBACK, (void *)&displayArgs, '\0', NULL },
+    { "help", '?', 0, NULL, '?', "Show this help message" },
+    { "usage", '\0', 0, NULL, 'u', "Display brief usage message" },
+    { NULL, '\0', 0, NULL, 0 }
+} ;
+
+
+static const char *
+getTableTranslationDomain(const struct poptOption *table)
+{
+  const struct poptOption *opt;
+
+  for(opt = table;
+      opt->longName || opt->shortName || opt->arg;
+      opt++) {
+    if(opt->argInfo == POPT_ARG_INTL_DOMAIN)
+      return opt->arg;
+  }
+
+  return NULL;
+}
+
+static const char * getArgDescrip(const struct poptOption * opt,
+				  const char *translation_domain) {
+    if (!(opt->argInfo & POPT_ARG_MASK)) return NULL;
+
+    if (opt == (poptHelpOptions + 1) || opt == (poptHelpOptions + 2))
+	if (opt->argDescrip) return POPT_(opt->argDescrip);
+
+    if (opt->argDescrip) return D_(translation_domain, opt->argDescrip);
+    return POPT_("ARG");
+}
+
+static void singleOptionHelp(FILE * f, int maxLeftCol, 
+			     const struct poptOption * opt,
+			     const char *translation_domain) {
+    int indentLength = maxLeftCol + 5;
+    int lineLength = 79 - indentLength;
+    const char * help = D_(translation_domain, opt->descrip);
+    int helpLength;
+    const char * ch;
+    char format[10];
+    char * left = malloc(maxLeftCol + 1);
+    const char * argDescrip = getArgDescrip(opt, translation_domain);
+
+    *left = '\0';
+    if (opt->longName && opt->shortName)
+	sprintf(left, "-%c, --%s", opt->shortName, opt->longName);
+    else if (opt->shortName) 
+	sprintf(left, "-%c", opt->shortName);
+    else if (opt->longName)
+	sprintf(left, "--%s", opt->longName);
+    if (!*left) {
+        free(left);
+        return;
+    }
+    if (argDescrip) {
+	strcat(left, "=");
+	strcat(left, argDescrip);
+    }
+
+    if (help)
+	fprintf(f,"  %-*s   ", maxLeftCol, left);
+    else {
+	fprintf(f,"  %s\n", left); 
+        free(left);
+	return;
+    }
+
+    free(left);
+
+    helpLength = strlen(help);
+    while (helpLength > lineLength) {
+	ch = help + lineLength - 1;
+	while (ch > help && !isspace(*ch)) ch--;
+	if (ch == help) break;		/* give up */
+	while (ch > (help + 1) && isspace(*ch)) ch--;
+	ch++;
+
+	sprintf(format, "%%.%ds\n%%%ds", (int) (ch - help), indentLength);
+	fprintf(f, format, help, " ");
+	help = ch;
+	while (isspace(*help) && *help) help++;
+	helpLength = strlen(help);
+    }
+
+    if (helpLength) fprintf(f, "%s\n", help);
+}
+
+static int maxArgWidth(const struct poptOption * opt,
+		       const char * translation_domain) {
+    int max = 0;
+    int this;
+    const char * s;
+    
+    while (opt->longName || opt->shortName || opt->arg) {
+	if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
+	    this = maxArgWidth(opt->arg, translation_domain);
+	    if (this > max) max = this;
+	} else if (!(opt->argInfo & POPT_ARGFLAG_DOC_HIDDEN)) {
+	    this = opt->shortName ? 2 : 0;
+	    if (opt->longName) {
+		if (this) this += 2;
+		this += strlen(opt->longName) + 2;
+	    }
+
+	    s = getArgDescrip(opt, translation_domain);
+	    if (s)
+		this += strlen(s) + 1;
+	    if (this > max) max = this;
+	}
+
+	opt++;
+    }
+    
+    return max;
+}
+
+static void singleTableHelp(FILE * f, const struct poptOption * table, 
+			    int left,
+			    const char *translation_domain) {
+    const struct poptOption * opt;
+    const char *sub_transdom;
+
+    opt = table;
+    while (opt->longName || opt->shortName || opt->arg) {
+	if ((opt->longName || opt->shortName) && 
+	    !(opt->argInfo & POPT_ARGFLAG_DOC_HIDDEN))
+	    singleOptionHelp(f, left, opt, translation_domain);
+	opt++;
+    }
+
+    opt = table;
+    while (opt->longName || opt->shortName || opt->arg) {
+	if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) {
+	    sub_transdom = getTableTranslationDomain(opt->arg);
+	    if(!sub_transdom)
+		sub_transdom = translation_domain;
+	    
+	    if (opt->descrip)
+		fprintf(f, "\n%s\n", D_(sub_transdom, opt->descrip));
+
+	    singleTableHelp(f, opt->arg, left, sub_transdom);
+	}
+	opt++;
+    }
+}
+
+static int showHelpIntro(poptContext con, FILE * f) {
+    int len = 6;
+    char * fn;
+
+    fprintf(f, POPT_("Usage:"));
+    if (!(con->flags & POPT_CONTEXT_KEEP_FIRST)) {
+	fn = con->optionStack->argv[0];
+	if (strchr(fn, '/')) fn = strchr(fn, '/') + 1;
+	fprintf(f, " %s", fn);
+	len += strlen(fn) + 1;
+    }
+
+    return len;
+}
+
+void poptPrintHelp(poptContext con, FILE * f, int flags) {
+    int leftColWidth;
+
+    showHelpIntro(con, f);
+    if (con->otherHelp)
+	fprintf(f, " %s\n", con->otherHelp);
+    else
+	fprintf(f, " %s\n", POPT_("[OPTION...]"));
+
+    leftColWidth = maxArgWidth(con->options, NULL);
+    singleTableHelp(f, con->options, leftColWidth, NULL);
+}
+
+static int singleOptionUsage(FILE * f, int cursor, 
+			     const struct poptOption * opt,
+			     const char *translation_domain) {
+    int len = 3;
+    char shortStr[2];
+    const char * item = shortStr;
+    const char * argDescrip = getArgDescrip(opt, translation_domain);
+
+    if (opt->shortName) {
+	if (!(opt->argInfo & POPT_ARG_MASK)) 
+	    return cursor;	/* we did these already */
+	len++;
+	*shortStr = opt->shortName;
+	shortStr[1] = '\0';
+    } else if (opt->longName) {
+	len += 1 + strlen(opt->longName);
+	item = opt->longName;
+    }
+
+    if (len == 3) return cursor;
+
+    if (argDescrip) 
+	len += strlen(argDescrip) + 1;
+
+    if ((cursor + len) > 79) {
+	fprintf(f, "\n       ");
+	cursor = 7;
+    } 
+
+    fprintf(f, " [-%s%s%s%s]", opt->shortName ? "" : "-", item,
+	    argDescrip ? (opt->shortName ? " " : "=") : "",
+	    argDescrip ? argDescrip : "");
+
+    return cursor + len + 1;
+}
+
+static int singleTableUsage(FILE * f, int cursor, const struct poptOption * table,
+		     const char *translation_domain) {
+    const struct poptOption * opt;
+    
+    opt = table;
+    while (opt->longName || opt->shortName || opt->arg) {
+        if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INTL_DOMAIN)
+	    translation_domain = (const char *)opt->arg;
+	else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE) 
+	    cursor = singleTableUsage(f, cursor, opt->arg,
+				      translation_domain);
+	else if ((opt->longName || opt->shortName) && 
+		 !(opt->argInfo & POPT_ARGFLAG_DOC_HIDDEN))
+	  cursor = singleOptionUsage(f, cursor, opt, translation_domain);
+
+	opt++;
+    }
+
+    return cursor;
+}
+
+static int showShortOptions(const struct poptOption * opt, FILE * f, 
+			    char * str) {
+    char s[300];		/* this is larger then the ascii set, so
+				   it should do just fine */
+
+    if (!str) {
+	str = s;
+	memset(str, 0, sizeof(s));
+    }
+
+    while (opt->longName || opt->shortName || opt->arg) {
+	if (opt->shortName && !(opt->argInfo & POPT_ARG_MASK))
+	    str[strlen(str)] = opt->shortName;
+	else if ((opt->argInfo & POPT_ARG_MASK) == POPT_ARG_INCLUDE_TABLE)
+	    showShortOptions(opt->arg, f, str);
+
+	opt++;
+    } 
+
+    if (s != str || !*s)
+	return 0;
+
+    fprintf(f, " [-%s]", s);
+    return strlen(s) + 4;
+}
+
+void poptPrintUsage(poptContext con, FILE * f, int flags) {
+    int cursor;
+
+    cursor = showHelpIntro(con, f);
+    cursor += showShortOptions(con->options, f, NULL);
+    singleTableUsage(f, cursor, con->options, NULL);
+
+    if (con->otherHelp) {
+	cursor += strlen(con->otherHelp) + 1;
+	if (cursor > 79) fprintf(f, "\n       ");
+	fprintf(f, " %s", con->otherHelp);
+    }
+
+    fprintf(f, "\n");
+}
+
+void poptSetOtherOptionHelp(poptContext con, const char * text) {
+    if (con->otherHelp) free(con->otherHelp);
+    con->otherHelp = g_strdup(text);
+}