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Diffstat (limited to 'nx-X11/extras/regex/regerror.c')
-rw-r--r--nx-X11/extras/regex/regerror.c126
1 files changed, 126 insertions, 0 deletions
diff --git a/nx-X11/extras/regex/regerror.c b/nx-X11/extras/regex/regerror.c
new file mode 100644
index 000000000..e53dafcfb
--- /dev/null
+++ b/nx-X11/extras/regex/regerror.c
@@ -0,0 +1,126 @@
+#include <sys/types.h>
+#include <stdio.h>
+#include <string.h>
+#include <ctype.h>
+#include <limits.h>
+#include <stdlib.h>
+#include <regex.h>
+
+#include "utils.h"
+#include "regerror.ih"
+
+/*
+ = #define REG_OKAY 0
+ = #define REG_NOMATCH 1
+ = #define REG_BADPAT 2
+ = #define REG_ECOLLATE 3
+ = #define REG_ECTYPE 4
+ = #define REG_EESCAPE 5
+ = #define REG_ESUBREG 6
+ = #define REG_EBRACK 7
+ = #define REG_EPAREN 8
+ = #define REG_EBRACE 9
+ = #define REG_BADBR 10
+ = #define REG_ERANGE 11
+ = #define REG_ESPACE 12
+ = #define REG_BADRPT 13
+ = #define REG_EMPTY 14
+ = #define REG_ASSERT 15
+ = #define REG_INVARG 16
+ = #define REG_ATOI 255 // convert name to number (!)
+ = #define REG_ITOA 0400 // convert number to name (!)
+ */
+static struct rerr {
+ int code;
+ char *name;
+ char *explain;
+} rerrs[] = {
+ REG_OKAY, "REG_OKAY", "no errors detected",
+ REG_NOMATCH, "REG_NOMATCH", "regexec() failed to match",
+ REG_BADPAT, "REG_BADPAT", "invalid regular expression",
+ REG_ECOLLATE, "REG_ECOLLATE", "invalid collating element",
+ REG_ECTYPE, "REG_ECTYPE", "invalid character class",
+ REG_EESCAPE, "REG_EESCAPE", "trailing backslash (\\)",
+ REG_ESUBREG, "REG_ESUBREG", "invalid backreference number",
+ REG_EBRACK, "REG_EBRACK", "brackets ([ ]) not balanced",
+ REG_EPAREN, "REG_EPAREN", "parentheses not balanced",
+ REG_EBRACE, "REG_EBRACE", "braces not balanced",
+ REG_BADBR, "REG_BADBR", "invalid repetition count(s)",
+ REG_ERANGE, "REG_ERANGE", "invalid character range",
+ REG_ESPACE, "REG_ESPACE", "out of memory",
+ REG_BADRPT, "REG_BADRPT", "repetition-operator operand invalid",
+ REG_EMPTY, "REG_EMPTY", "empty (sub)expression",
+ REG_ASSERT, "REG_ASSERT", "\"can't happen\" -- you found a bug",
+ REG_INVARG, "REG_INVARG", "invalid argument to regex routine",
+ -1, "", "*** unknown regexp error code ***",
+};
+
+/*
+ - regerror - the interface to error numbers
+ = extern size_t regerror(int, const regex_t *, char *, size_t);
+ */
+/* ARGSUSED */
+size_t
+regerror(errcode, preg, errbuf, errbuf_size)
+int errcode;
+const regex_t *preg;
+char *errbuf;
+size_t errbuf_size;
+{
+ register struct rerr *r;
+ register size_t len;
+ register int target = errcode &~ REG_ITOA;
+ register char *s;
+ char convbuf[50];
+
+ if (errcode == REG_ATOI)
+ s = regatoi(preg, convbuf);
+ else {
+ for (r = rerrs; r->code >= 0; r++)
+ if (r->code == target)
+ break;
+
+ if (errcode&REG_ITOA) {
+ if (r->code >= 0)
+ (void) strcpy(convbuf, r->name);
+ else
+ sprintf(convbuf, "REG_0x%x", target);
+ assert(strlen(convbuf) < sizeof(convbuf));
+ s = convbuf;
+ } else
+ s = r->explain;
+ }
+
+ len = strlen(s) + 1;
+ if (errbuf_size > 0) {
+ if (errbuf_size > len)
+ (void) strcpy(errbuf, s);
+ else {
+ (void) strncpy(errbuf, s, errbuf_size-1);
+ errbuf[errbuf_size-1] = '\0';
+ }
+ }
+
+ return(len);
+}
+
+/*
+ - regatoi - internal routine to implement REG_ATOI
+ == static char *regatoi(const regex_t *preg, char *localbuf);
+ */
+static char *
+regatoi(preg, localbuf)
+const regex_t *preg;
+char *localbuf;
+{
+ register struct rerr *r;
+
+ for (r = rerrs; r->code >= 0; r++)
+ if (strcmp(r->name, preg->re_endp) == 0)
+ break;
+ if (r->code < 0)
+ return("0");
+
+ sprintf(localbuf, "%d", r->code);
+ return(localbuf);
+}