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authorMattias Andrée <maandree@operamail.com>2014-05-31 05:56:33 +0200
committerMattias Andrée <maandree@operamail.com>2014-05-31 05:56:33 +0200
commit379d69c653fd9c6920ab56d0b8ded7e00b8d6efb (patch)
tree90c8c1af1a2c22c462a6324a25feba2c7d6924d7 /src
parentm (diff)
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add libgamma_name_of_error and libgamma_value_of_error
Signed-off-by: Mattias Andrée <maandree@operamail.com>
Diffstat (limited to 'src')
-rw-r--r--src/libgamma-error.c.gpp (renamed from src/libgamma-error.c)53
-rw-r--r--src/libgamma-error.h21
2 files changed, 74 insertions, 0 deletions
diff --git a/src/libgamma-error.c b/src/libgamma-error.c.gpp
index 9374f8b..93f8542 100644
--- a/src/libgamma-error.c
+++ b/src/libgamma-error.c.gpp
@@ -1,3 +1,4 @@
+/* -*- c -*- */
/**
* libgamma — Display server abstraction layer for gamma ramp adjustments
* Copyright © 2014 Mattias Andrée (maandree@member.fsf.org)
@@ -20,6 +21,8 @@
#include <stddef.h>
#include <sys/types.h>
+#include <string.h>
+
/**
@@ -33,3 +36,53 @@ gid_t libgamma_group_gid = 0;
*/
const char* libgamma_group_name = NULL;
+
+
+£>set -u
+£>cd info
+£>export PATH=".:${PATH}"
+
+
+/**
+ * Returns the name of the definition associated with a libgamma error code.
+ *
+ * @param value The error code.
+ * @return The name of the definition associated with the error code,
+ * `NULL` if the error code does not exist. The return string
+ * should not be `free`:d.
+ */
+const char* libgamma_name_of_error(int value)
+{
+ static const char* error_names[] =
+ {
+£>for error in $(libgamma-error-extract --list); do
+ "£{error}",
+£>done
+ };
+
+ if ((value < LIBGAMMA_ERROR_MIN) || (value >= 0))
+ return NULL;
+
+ return error_names[-value - 1];
+}
+
+
+/**
+ * Return the value of a libgamma error definition refered to by name.
+ *
+ * @param name The name of the definition associated with the error code.
+ * @return The error code, zero if the name does is `NULL`
+ * or does not refer to an libgamma error.
+ */
+int libgamma_value_of_error(const char* name)
+{
+ if (name == NULL)
+ return 0;
+
+£>for error in $(libgamma-error-extract --list); do
+ if (!strcmp(name, "£{error}")) return £{error};
+£>done
+
+ return 0;
+}
+
diff --git a/src/libgamma-error.h b/src/libgamma-error.h
index 1698e5f..fac5276 100644
--- a/src/libgamma-error.h
+++ b/src/libgamma-error.h
@@ -288,5 +288,26 @@ extern const char* libgamma_group_name;
+/**
+ * Returns the name of the definition associated with a libgamma error code.
+ *
+ * @param value The error code.
+ * @return The name of the definition associated with the error code,
+ * `NULL` if the error code does not exist. The return string
+ * should not be `free`:d.
+ */
+const char* libgamma_name_of_error(int value) __attribute__((const));
+
+/**
+ * Return the value of a libgamma error definition refered to by name.
+ *
+ * @param name The name of the definition associated with the error code.
+ * @return The error code, zero if the name does is `NULL`
+ * or does not refer to an libgamma error.
+ */
+int libgamma_value_of_error(const char* name) __attribute__((const));
+
+
+
#endif