Reworking of stack traces (back to using addr2line) for compatibility

and improved output quality

1 files changed, 51 insertions, 0 deletions

diff --git a/src/stdlib/simpleparse.h b/src/stdlib/simpleparse.h
new file mode 100644
index 00000000..1448f74e
--- /dev/null
+++ b/src/stdlib/simpleparse.h
@@ -0,0 +1,51 @@
+#pragma once
+
+// This file defines some functions to make it easy to parse simply formatted
+// strings **correctly** without memory bugs.
+//
+//     strparse(input_str, format...) - parse a string
+//
+// Examples:
+//
+//     const char *filename; long line_num;
+//     const char *err = NULL;
+//     if ((err=strparse("foo.c:12", &filename, ":", &line_num)))
+//         errx(1, "Failed to parse file:line at: ", err);
+//
+//     const char *item1, *item2;
+//     if ((err=strparse("one, two", &item1, ",", PARSE_WHITESPACE, &item2)))
+//         errx(1, "Failed to parse items at: ", err);
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <stdio.h>
+
+#include "mapmacro.h"
+
+typedef struct { char c; } some_char_t;
+#define PARSE_SOME_OF(chars) ((some_char_t*)chars)
+#define PARSE_WHITESPACE PARSE_SOME_OF(" \t\r\n\v")
+typedef enum {PARSE_LITERAL, PARSE_LONG, PARSE_DOUBLE, PARSE_BOOL, PARSE_STRING, PARSE_SOME_OF} parse_type_e;
+
+typedef struct { parse_type_e type; void *dest; } parse_element_t;
+
+#define _parse_type(dest) _Generic((dest), \
+    some_char_t*: PARSE_SOME_OF, \
+    const char*: PARSE_LITERAL, \
+    const char**: PARSE_STRING, \
+    char**: PARSE_STRING, \
+    double*: PARSE_DOUBLE, \
+    long*: PARSE_LONG, \
+    bool*: PARSE_BOOL)
+
+#define as_void_star(x) ((void*)x)
+#define strparse(str, ...) simpleparse(str, sizeof((const void*[]){__VA_ARGS__})/sizeof(void*), (parse_type_e[]){MAP_LIST(_parse_type, __VA_ARGS__)}, (void*[]){MAP_LIST(as_void_star, __VA_ARGS__)})
+#define fparse(file, ...) ({ char *_file_contents = NULL; size_t _file_len; \
+                           (void)getdelim(&_file_contents, &_file_len, '\0', file); \
+                           const char *_parse_err = strparse(_file_contents, __VA_ARGS__); \
+                           free(_file_contents); \
+                           _parse_err; })
+
+const char *simpleparse(const char *str, int n, parse_type_e types[n], void *destinations[n]);
+
+// vim: ts=4 sw=0 et cino=L2,l1,(0,W4,m1,\:0