From 35feb966b7490c06b27414cc619febe5b30e94e7 Mon Sep 17 00:00:00 2001
From: Erik Troan <ewt@src.gnome.org>
Date: Mon, 20 Jan 1997 22:16:31 +0000
Subject: [PATCH] added poptBadOption(), poptStrerror(), flags argument to
 poptAddAlias

svn path=/trunk/; revision=4
---
 support/popt-gnome.h |  9 ++++++---
 support/popt.c       | 40 +++++++++++++++++++++++++++++++++++++---
 support/popt.h       |  9 ++++++---
 3 files changed, 49 insertions(+), 9 deletions(-)

diff --git a/support/popt-gnome.h b/support/popt-gnome.h
index fab92bc..1dc03b1 100644
--- a/support/popt-gnome.h
+++ b/support/popt-gnome.h
@@ -10,12 +10,12 @@
 
 #define POPT_ERROR_NOARG	-10
 #define POPT_ERROR_BADOPT	-11
-#define POPT_ERROR_BADALIAS	-12
 #define POPT_ERROR_OPTSTOODEEP	-13
-#define POPT_ERROR_UNEXPARG	-14
 #define POPT_ERROR_BADQUOTE	-15	/* only from poptParseArgString() */
 #define POPT_ERROR_ERRNO	-16	/* only from poptParseArgString() */
 
+#define POPT_BADOPTION_NOALIAS  (1 << 0)  /* don't go into an alias */
+
 struct poptOption {
     const char * longName;	/* may be NULL */
     char shortName;		/* may be '\0' */
@@ -44,8 +44,10 @@ char * poptGetOptArg(poptContext con);
 char * poptGetArg(poptContext con);
 char * poptPeekArg(poptContext con);
 char ** poptGetArgs(poptContext con);
+/* returns the option which caused the most recent error */
+char * poptBadOption(poptContext con, int flags);
 void poptFreeContext(poptContext con);
-int poptAddAlias(poptContext con, struct poptAlias alias);
+int poptAddAlias(poptContext con, struct poptAlias alias, int flags);
 int poptReadConfigFile(poptContext con, char * fn);
 /* like above, but reads /etc/popt and $HOME/.popt along with environment 
    vars */
@@ -53,5 +55,6 @@ int poptReadDefaultConfig(poptContext con, int useEnv);
 /* argv should be freed -- this allows ', ", and \ quoting, but ' is treated
    the same as " and both may include \ quotes */
 int poptParseArgvString(char * s, int * argcPtr, char *** argvPtr);
+const char * poptStrerror(const int error);
 
 #endif
diff --git a/support/popt.c b/support/popt.c
index 2659dd2..930cc5e 100644
--- a/support/popt.c
+++ b/support/popt.c
@@ -223,7 +223,7 @@ void poptFreeContext(poptContext con) {
     free(con);
 }
 
-int poptAddAlias(poptContext con, struct poptAlias newAlias) {
+int poptAddAlias(poptContext con, struct poptAlias newAlias, int flags) {
     int aliasNum = con->numAliases++;
     struct poptAlias * alias;
 
@@ -342,7 +342,7 @@ static void configLine(poptContext con, char * line) {
 	if (poptParseArgvString(line, &alias.argc, &alias.argv)) return;
 	alias.longName = opt;
 	
-	poptAddAlias(con, alias);
+	poptAddAlias(con, alias, 0);
     }
 }
 
@@ -448,7 +448,7 @@ int poptReadDefaultConfig(poptContext con, int useEnv) {
 	    if (chptr) *chptr = '\0';
 
 	    poptParseArgvString(envValue, &alias.argc, &alias.argv);
-	    poptAddAlias(con, alias);
+	    poptAddAlias(con, alias, 0);
 
 	    if (chptr)
 		envValue = chptr + 1;
@@ -459,3 +459,37 @@ int poptReadDefaultConfig(poptContext con, int useEnv) {
 
     return 0;
 }
+
+char * poptBadOption(poptContext con, int flags) {
+    struct optionStackEntry * os;
+
+    if (flags & POPT_BADOPTION_NOALIAS)
+	os = con->optionStack;
+    else
+	os = con->os;
+
+    return os->argv[os->next - 1];
+}
+
+#define POPT_ERROR_NOARG	-10
+#define POPT_ERROR_BADOPT	-11
+#define POPT_ERROR_OPTSTOODEEP	-13
+#define POPT_ERROR_BADQUOTE	-15	/* only from poptParseArgString() */
+#define POPT_ERROR_ERRNO	-16	/* only from poptParseArgString() */
+
+const char * poptStrerror(const int error) {
+    switch (error) {
+      case POPT_ERROR_NOARG:
+	return "missing argument";
+      case POPT_ERROR_BADOPT:
+	return "unknown option";
+      case POPT_ERROR_OPTSTOODEEP:
+	return "aliases nested too deeply";
+      case POPT_ERROR_BADQUOTE:
+	return "error in paramter quoting";
+      case POPT_ERROR_ERRNO:
+	return strerror(errno);
+      default:
+	return "unknown error";
+    }
+}
diff --git a/support/popt.h b/support/popt.h
index fab92bc..1dc03b1 100644
--- a/support/popt.h
+++ b/support/popt.h
@@ -10,12 +10,12 @@
 
 #define POPT_ERROR_NOARG	-10
 #define POPT_ERROR_BADOPT	-11
-#define POPT_ERROR_BADALIAS	-12
 #define POPT_ERROR_OPTSTOODEEP	-13
-#define POPT_ERROR_UNEXPARG	-14
 #define POPT_ERROR_BADQUOTE	-15	/* only from poptParseArgString() */
 #define POPT_ERROR_ERRNO	-16	/* only from poptParseArgString() */
 
+#define POPT_BADOPTION_NOALIAS  (1 << 0)  /* don't go into an alias */
+
 struct poptOption {
     const char * longName;	/* may be NULL */
     char shortName;		/* may be '\0' */
@@ -44,8 +44,10 @@ char * poptGetOptArg(poptContext con);
 char * poptGetArg(poptContext con);
 char * poptPeekArg(poptContext con);
 char ** poptGetArgs(poptContext con);
+/* returns the option which caused the most recent error */
+char * poptBadOption(poptContext con, int flags);
 void poptFreeContext(poptContext con);
-int poptAddAlias(poptContext con, struct poptAlias alias);
+int poptAddAlias(poptContext con, struct poptAlias alias, int flags);
 int poptReadConfigFile(poptContext con, char * fn);
 /* like above, but reads /etc/popt and $HOME/.popt along with environment 
    vars */
@@ -53,5 +55,6 @@ int poptReadDefaultConfig(poptContext con, int useEnv);
 /* argv should be freed -- this allows ', ", and \ quoting, but ' is treated
    the same as " and both may include \ quotes */
 int poptParseArgvString(char * s, int * argcPtr, char *** argvPtr);
+const char * poptStrerror(const int error);
 
 #endif
-- 
2.7.4