[PATCH] Add the PRELUDE_PLUGIN_OPTION_DECLARE_INT_CB macro

I created a macro that does the same as the
PRELUDE_PLUGIN_OPTION_DECLARE_STRING_CB macro plus string to int conversion
in the setter function proper error checking and propagation and int to string
conversion in the getter.

Signed-off-by: Justus Winter <[email protected]>
---
 src/include/prelude-plugin.h |   27 +++++++++++++++++++++++++++
 1 files changed, 27 insertions(+), 0 deletions(-)

diff --git a/src/include/prelude-plugin.h b/src/include/prelude-plugin.h
index c4c4ce3..e810668 100644
--- a/src/include/prelude-plugin.h
+++ b/src/include/prelude-plugin.h
@@ -106,6 +106,33 @@ static int prefix ## _get_ ## name(
         return 0;                                                                                \
 }
 
+#define PRELUDE_PLUGIN_OPTION_DECLARE_INT_CB(prefix, type, name)             \
+static int prefix ## _set_ ## name(                                          \
+        prelude_option_t *opt __attribute__((unused)),                       \
+        const char *optarg,                                                  \
+        prelude_string_t *err __attribute__((unused)),                       \
+        void *context)                                                       \
+{                                                                            \
+    char *endptr;                                                            \
+    type *ptr = prelude_plugin_instance_get_plugin_data(context);            \
+    errno = 0;                                                               \
+    ptr->name = strtol(optarg, &endptr, 10);                                 \
+    if (*endptr != '\0')                                                     \
+        return prelude_error_verbose(PRELUDE_ERROR_GENERIC,                  \
+                                     "Conversion to integer failed");        \
+    return prelude_error_code_from_errno(errno);                             \
+}                                                                            \
+                                                                             \
+                                                                             \
+static int prefix ## _get_ ## name(                                          \
+        prelude_option_t *opt __attribute__((unused)),                       \
+        prelude_string_t *out,                                               \
+        void *context)                                                       \
+{                                                                            \
+    type *ptr = prelude_plugin_instance_get_plugin_data(context);            \
+    prelude_string_sprintf(out, "%d", ptr->name);                            \
+    return PRELUDE_ERROR_NO_ERROR;                                           \
+}
 
 /*
  *
-- 
1.7.2.3

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