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-rw-r--r--common.h13
-rw-r--r--libfonts.h22
-rw-r--r--libfonts_get_default_font.c10
-rw-r--r--libfonts_get_default_rendering_settings.c15
-rw-r--r--libfonts_get_output_rendering_settings.c17
-rw-r--r--libfonts_parse_aa__.c2
-rw-r--r--libfonts_parse_order__.c2
7 files changed, 64 insertions, 17 deletions
diff --git a/common.h b/common.h
index fe0d5ad..1047e2f 100644
--- a/common.h
+++ b/common.h
@@ -6,6 +6,7 @@
#include <inttypes.h>
#include <limits.h>
#include <pwd.h>
+#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
@@ -124,6 +125,18 @@
static inline void
+warning(struct libfonts_context *ctx, int err, const char *function, const char *fmt, ...)
+{
+ va_list args;
+ if (ctx && ctx->warning) {
+ va_start(args, fmt);
+ ctx->warning(err, function, fmt, args, ctx->user);
+ va_end(args);
+ }
+}
+
+
+static inline void
transform(double *x_out, double *y_out, double x, double y, const struct libfonts_transformation *transformation)
{
double a = transformation->m[0][0], b = transformation->m[0][1], c = transformation->m[0][2];
diff --git a/libfonts.h b/libfonts.h
index 2c7202a..f45c203 100644
--- a/libfonts.h
+++ b/libfonts.h
@@ -2,6 +2,7 @@
#ifndef LIBFONTS_H
#define LIBFONTS_H
+#include <stdarg.h>
#include <stdint.h>
#include <unistd.h>
@@ -1622,6 +1623,27 @@ struct libfonts_context {
* Only used if `.use_context_uid` is non-zero
*/
uid_t uid;
+
+ /**
+ * Application data used in as the last argument
+ * in callback functions
+ */
+ void *user;
+
+ /**
+ * If non-`NULL` some function may call thing
+ * function to let the application print a
+ * warning
+ *
+ * @param err `errno` value for the warning, 0 if none
+ * @param function The name of the function the warning is emitted from (closest public function)
+ * @param fmt Formattable description of the warning, will start in lower case,
+ * and will end with a colon if and only if a description of `err`
+ * shall be appended to the message (with a preceding space)
+ * @param args Argument used into the description via formatting
+ * @param user `.user` as is
+ */
+ void (*warning)(int err, const char *function, const char *fmt, va_list args, void *user);
};
diff --git a/libfonts_get_default_font.c b/libfonts_get_default_font.c
index 69d2729..e0ad9ab 100644
--- a/libfonts_get_default_font.c
+++ b/libfonts_get_default_font.c
@@ -25,6 +25,7 @@ getn(char **outp, const char *file_part1, size_t file_part1_len, const char *fil
char *line, *buf = NULL;
size_t size = 0, off = 0, avail = 0;
char *value;
+ size_t lineno = 0;
*outp = NULL;
@@ -60,7 +61,7 @@ open_again:
case ENODEV:
case ENOTDIR:
case ENXIO:
- /* TODO print warning using `ctx` */
+ warning(ctx, errno, "libfonts_get_default_font", "failed to open %s:", path);
goto out;
default:
goto out;
@@ -83,6 +84,7 @@ open_again:
if (!len)
break;
line[len -= 1] = '\0';
+ lineno++;
while (isblank(*line)) {
line++;
@@ -96,13 +98,13 @@ open_again:
value = libfonts_confsplit__(line);
if (!value) {
- /* TODO warning */
+ warning(ctx, 0, "libfonts_get_default_font", "bad line in %s at line %zu", path, lineno);
continue;
}
if (!strcmp(line, name)) {
if (*outp) {
- /* TODO warning */
+ warning(ctx, 0, "libfonts_get_default_font", "duplicate definition in %s at line %zu", path, lineno);
free(*outp);
*outp = NULL;
}
@@ -110,7 +112,7 @@ open_again:
if (!*outp)
goto fail;
} else if (strcmp(line, "sans-serif") && strcmp(line, "serif") && strcmp(line, "monospace")) {
- /* TODO warning */
+ warning(ctx, 0, "libfonts_get_default_font", "bad font class in %s at line %zu: %s", path, lineno, line);
}
}
diff --git a/libfonts_get_default_rendering_settings.c b/libfonts_get_default_rendering_settings.c
index ebdc51c..f40b1d1 100644
--- a/libfonts_get_default_rendering_settings.c
+++ b/libfonts_get_default_rendering_settings.c
@@ -15,6 +15,7 @@ getn(const char *file_part1, size_t file_part1_len, const char *file_part2,
size_t size = 0, off = 0, avail = 0;
char *value;
unsigned int found_fields = 0;
+ size_t lineno = 0;
if (file_part1_len > SIZE_MAX - file_part2_len - 1)
goto enomem;
@@ -48,7 +49,7 @@ open_again:
case ENODEV:
case ENOTDIR:
case ENXIO:
- /* TODO print warning using `ctx` */
+ warning(ctx, errno, "libfonts_get_default_rendering_settings", "failed to open %s:", path);
goto out;
default:
goto out;
@@ -68,6 +69,7 @@ open_again:
if (!len)
break;
line[len -= 1] = '\0';
+ lineno++;
while (isblank(*line))
line++;
@@ -79,22 +81,25 @@ open_again:
value = libfonts_confsplit__(line);
if (!value) {
- /* TODO warning */
+ warning(ctx, 0, "libfonts_get_default_rendering_settings", "bad line in %s at line %zu", path, lineno);
continue;
}
#define X(INDEX, CONFNAME, CNAME, DEFVAL, PARSER)\
if (!strcmp(line, CONFNAME)) {\
if (found_fields & (1U << INDEX)) {\
- /* TODO warning */\
+ warning(ctx, 0, "libfonts_get_default_rendering_settings",\
+ "duplicate definition in %s at line %zu", path, lineno); \
}\
found_fields |= (1U << INDEX);\
if (!PARSER(&settings->CNAME, value)) {\
- /* TODO warning */\
+ warning(ctx, 0, "libfonts_get_default_rendering_settings",\
+ "invalid value in %s at line %zu: %s", path, lineno, value);\
}\
} else
LIST_RENDERING_SETTINGS(X,) {
- /* TODO warning */
+ warning(ctx, 0, "libfonts_get_default_rendering_settings",\
+ "bad definition in %s at line %zu: %s", path, lineno, line);\
}
#undef X
}
diff --git a/libfonts_get_output_rendering_settings.c b/libfonts_get_output_rendering_settings.c
index 2cecf3c..b9c1efd 100644
--- a/libfonts_get_output_rendering_settings.c
+++ b/libfonts_get_output_rendering_settings.c
@@ -18,6 +18,7 @@ getn(const char *file_part1, size_t file_part1_len, const char *file_part2,
int in_a_section = 0;
char *value;
unsigned int found_fields = 0;
+ size_t lineno = 0;
if (file_part1_len > SIZE_MAX - file_part2_len - 1)
goto enomem;
@@ -51,7 +52,7 @@ open_again:
case ENODEV:
case ENOTDIR:
case ENXIO:
- /* TODO print warning using `ctx` */
+ warning(ctx, errno, "libfonts_get_default_rendering_settings", "failed to open %s:", path);
goto out;
default:
goto out;
@@ -71,6 +72,7 @@ open_again:
if (!len)
break;
line[len -= 1] = '\0';
+ lineno++;
while (isblank(*line)) {
line++;
@@ -93,7 +95,7 @@ open_again:
} else if (!in_a_section) {
value = libfonts_confsplit__(line);
if (!value) {
- /* TODO warning */
+ warning(ctx, 0, "libfonts_get_output_rendering_settings", "bad line in %s at line %zu", path, lineno);
continue;
}
/* TODO aliases should be declarable above the first "[%s]" */
@@ -101,21 +103,24 @@ open_again:
} else if (in_the_section) {
value = libfonts_confsplit__(line);
if (!value) {
- /* TODO warning */
+ warning(ctx, 0, "libfonts_get_output_rendering_settings", "bad line in %s at line %zu", path, lineno);
continue;
}
#define X(INDEX, CONFNAME, CNAME, DEFVAL, PARSER)\
if (!strcmp(line, CONFNAME)) {\
if (found_fields & (1U << INDEX)) {\
- /* TODO warning */\
+ warning(ctx, 0, "libfonts_get_output_rendering_settings",\
+ "duplicate definition in %s at line %zu", path, lineno); \
}\
found_fields |= (1U << INDEX);\
if (!PARSER(&settings->CNAME, value)) {\
- /* TODO warning */\
+ warning(ctx, 0, "libfonts_get_output_rendering_settings",\
+ "invalid value in %s at line %zu: %s", path, lineno, value);\
}\
} else
LIST_RENDERING_SETTINGS(X,) {
- /* TODO warning */
+ warning(ctx, 0, "libfonts_get_output_rendering_settings",\
+ "bad definition in %s at line %zu: %s", path, lineno, line);\
}
#undef X
}
diff --git a/libfonts_parse_aa__.c b/libfonts_parse_aa__.c
index 0ed9a3d..8394a56 100644
--- a/libfonts_parse_aa__.c
+++ b/libfonts_parse_aa__.c
@@ -36,7 +36,7 @@ main(void)
ASSERT(res == C);\
strcpy(buf, S);\
for (i = 0; buf[i]; i++)\
- buf[i] = toupper(buf[i]);\
+ buf[i] = (char)toupper(buf[i]);\
res = 999;\
ASSERT(libfonts_parse_aa__(&res, buf) == 1);\
ASSERT(res == C);\
diff --git a/libfonts_parse_order__.c b/libfonts_parse_order__.c
index 349347e..906c4a9 100644
--- a/libfonts_parse_order__.c
+++ b/libfonts_parse_order__.c
@@ -37,7 +37,7 @@ main(void)
ASSERT(res == C);\
strcpy(buf, S);\
for (i = 0; buf[i]; i++)\
- buf[i] = toupper(buf[i]);\
+ buf[i] = (char)toupper(buf[i]);\
res = 999;\
ASSERT(libfonts_parse_order__(&res, buf) == 1);\
ASSERT(res == C);\
generated by cgit v1.2.3-70-g09d2 (git 2.47.0) at 2024-11-21 11:31:00 +0000