5 This is a tiny library of helper functions/macros.
7 * MACRO-FUNC: macro w/ function syntax. (might become inline func)
8 * INLINE-FUNC: inline function (might become macro func)
9 * MACRO: strictly a macro (may never become a inline func)
13 mhl/memory.h: Memory management functions
15 * mhl_mem_alloc_u(sz) [MACRO-FUNC]
17 Allocate sz bytes on stack, unitialized
19 * mhl_mem_alloc_z(sz) [INLINE-FUNC]
21 Allocate sz bytes on stack, zero'ed
23 * mhl_mem_free(ptr) [INLINE-FUNC]
25 Free chunk @ptr (MUST be allocated w/ mhl_mem_alloc_*()),
26 passing NULL is graciously allowed
28 * mhl_mem_realloc(ptr,newsize) -> returns newptr
30 Re-allocates a heap chunk, just like realloc()
32 * MHL_PTR_FREE(ptr) [MACRO-ONLY]
34 like mhl_mem_free(), but with ptr as a variable that gets cleared
35 (use this as shortcut to "mhl_mem_free(foo); foo = NULL")
37 mhl/string.h: String helpers
39 * mhl_str_dup(const char*s) -> char*
41 [MACRO-FUNC] Safe version of strdup(), when NULL passed, returns strdup("")
43 * mhl_str_ndup(const char* s) -> char*
45 [MACRO-FUNC] Safe version of strndup(), when NULL passed, returns strdup("")
47 * mhl_str_trim(char* s) -> char*
49 [INLINE-FUNC] Trims the string (removing leading and trailing whitespacs),
50 WITHIN the passed buffer, returning the string s itself.
51 When NULL passed returns NULL.
53 * mhl_str_toupper(char* s) -> char*
55 [INLINE-FUNC] Converts the string in passed buffer to uppercase, returns that
56 buffer. When NULL passed returns NULL.
58 * mhl_str_concat_1(const char* base, const char* one) -> char*
60 [INLINE-FUNC] Concatenates the string one onto the string base and returns the
61 result in a newly allocated buffer (free it w/ mhl_mem_free()).
62 For NULL strings, "" is assumed.
64 * mhl_str_concat_2(const char* base,const char* one,const char* two) -> char*
65 mhl_str_concat_3(const char* base,const char* one,const char* two,const char* three) -> char*
66 mhl_str_concat_4(const char* base,const char* one,const char* two,const char* three,const char* four) -> char*
67 mhl_str_concat_5(const char* base,const char* one,const char* two,const char* three,const char* four,const char* five) -> char*
68 mhl_str_concat_6(const char* base,const char* one,const char* two,const char* three,const char* four,const char* five,const char* six) -> char*
69 mhl_str_concat_7(const char* base,const char* one,const char* two,const char* three,const char* four,const char* five,const char* six,const char* seven) -> char*
71 [INLINE-FUNC] Like str_concat_1() but adding more strings.
73 * mhl_str_reverse(char* str) -> char*
75 [INLINE-FUNC] Reverses the string in passed buffer and returns the buffer ptr itself.
76 If NULL is passed, returns NULL.
78 mhl/escape.h: Shell-style string escaping
80 * mhl_shell_escape_toesc(char c) -> bool
82 [MACRO-FUNC] returns true when given char has to be escaped
84 * mhl_shell_escape_nottoesc(char c) -> bool
86 [MACRO-FUNC] opposite of mhl_shell_escape_toesc()
88 * mhl_shell_escape_dup(const char* s) -> char*
90 [INLINE-FUNC] escapes an string and returns the result in a malloc()'ed chunk
91 Passing NULL returns an empty malloc()ed string.
93 * mhl_shell_unescape_buf(char* s) -> char*
95 [INLINE-FUNC] unescapes the string into given buffer (changes buffer!) and
96 returns ptr to the buffer itself. When NULL passed returns NULL.
98 mhl/env.h: Environment variable helpers
100 * mhl_getenv_dup(const char* n) -> char*
102 [MACRO-FUNC] like getenv() but returns an strdup()'ed copy. When NULL passed,