mirror of
git://projects.qi-hardware.com/openwrt-packages.git
synced 2024-11-23 06:35:20 +02:00
114 lines
3.2 KiB
Diff
114 lines
3.2 KiB
Diff
--- alsa-lib-1.0.24.1.orig/src/ucm/parser.c 2011-03-13 21:17:10.405058674 +0300
|
|
+++ alsa-lib-1.0.24.1/src/ucm/parser.c 2011-03-13 21:26:24.705183404 +0300
|
|
@@ -32,6 +32,9 @@
|
|
|
|
#include "ucm_local.h"
|
|
#include <dirent.h>
|
|
+#include <string.h>
|
|
+#include <ctype.h>
|
|
+#include <stdint.h>
|
|
|
|
/** The name of the environment variable containing the UCM directory */
|
|
#define ALSA_CONFIG_UCM_VAR "ALSA_CONFIG_UCM"
|
|
@@ -40,6 +43,100 @@
|
|
struct list_head *base,
|
|
snd_config_t *cfg);
|
|
|
|
+ /* states: S_N: normal, S_I: comparing integral part, S_F: comparing
|
|
+ fractional parts, S_Z: idem but with leading Zeroes only */
|
|
+ #define S_N 0x0
|
|
+ #define S_I 0x4
|
|
+ #define S_F 0x8
|
|
+ #define S_Z 0xC
|
|
+
|
|
+ /* result_type: CMP: return diff; LEN: compare using len_diff/diff */
|
|
+ #define CMP 2
|
|
+ #define LEN 3
|
|
+
|
|
+ /* using more efficient isdigit() */
|
|
+ #undef isdigit
|
|
+ #define isdigit(a) ((unsigned)((a) - '0') <= 9)
|
|
+
|
|
+ /* Compare S1 and S2 as strings holding indices/version numbers,
|
|
+ returning less than, equal to or greater than zero if S1 is less than,
|
|
+ equal to or greater than S2 (for more info, see the texinfo doc).
|
|
+ */
|
|
+ int strverscmp (const char *s1, const char *s2)
|
|
+ {
|
|
+ const unsigned char *p1 = (const unsigned char *) s1;
|
|
+ const unsigned char *p2 = (const unsigned char *) s2;
|
|
+ unsigned char c1, c2;
|
|
+ int state;
|
|
+ int diff;
|
|
+
|
|
+ /* Symbol(s) 0 [1-9] others (padding)
|
|
+ Transition (10) 0 (01) d (00) x (11) - */
|
|
+ static const uint8_t next_state[] =
|
|
+ {
|
|
+ /* state x d 0 - */
|
|
+ /* S_N */ S_N, S_I, S_Z, S_N,
|
|
+ /* S_I */ S_N, S_I, S_I, S_I,
|
|
+ /* S_F */ S_N, S_F, S_F, S_F,
|
|
+ /* S_Z */ S_N, S_F, S_Z, S_Z
|
|
+ };
|
|
+
|
|
+ static const int8_t result_type[] =
|
|
+ {
|
|
+ /* state x/x x/d x/0 x/- d/x d/d d/0 d/-
|
|
+ 0/x 0/d 0/0 0/- -/x -/d -/0 -/- */
|
|
+
|
|
+ /* S_N */ CMP, CMP, CMP, CMP, CMP, LEN, CMP, CMP,
|
|
+ CMP, CMP, CMP, CMP, CMP, CMP, CMP, CMP,
|
|
+ /* S_I */ CMP, -1, -1, CMP, +1, LEN, LEN, CMP,
|
|
+ +1, LEN, LEN, CMP, CMP, CMP, CMP, CMP,
|
|
+ /* S_F */ CMP, CMP, CMP, CMP, CMP, LEN, CMP, CMP,
|
|
+ CMP, CMP, CMP, CMP, CMP, CMP, CMP, CMP,
|
|
+ /* S_Z */ CMP, +1, +1, CMP, -1, CMP, CMP, CMP,
|
|
+ -1, CMP, CMP, CMP
|
|
+ };
|
|
+
|
|
+ if (p1 == p2)
|
|
+ return 0;
|
|
+
|
|
+ c1 = *p1++;
|
|
+ c2 = *p2++;
|
|
+ /* Hint: '0' is a digit too. */
|
|
+ state = S_N | ((c1 == '0') + (isdigit (c1) != 0));
|
|
+
|
|
+ while ((diff = c1 - c2) == 0 && c1 != '\0')
|
|
+ {
|
|
+ state = next_state[state];
|
|
+ c1 = *p1++;
|
|
+ c2 = *p2++;
|
|
+ state |= (c1 == '0') + (isdigit (c1) != 0);
|
|
+ }
|
|
+
|
|
+ state = result_type[state << 2 | (((c2 == '0') + (isdigit (c2) != 0)))];
|
|
+
|
|
+ switch (state)
|
|
+ {
|
|
+ case CMP:
|
|
+ return diff;
|
|
+
|
|
+ case LEN:
|
|
+ while (isdigit (*p1++))
|
|
+ if (!isdigit (*p2++))
|
|
+ return 1;
|
|
+
|
|
+ return isdigit (*p2) ? -1 : diff;
|
|
+
|
|
+ default:
|
|
+ return state;
|
|
+ }
|
|
+ }
|
|
+
|
|
+int versionsort(const void *a, const void *b)
|
|
+{
|
|
+ return strverscmp((*(const struct dirent **) a)->d_name,
|
|
+ (*(const struct dirent **) b)->d_name);
|
|
+}
|
|
+
|
|
/*
|
|
* Parse string
|
|
*/
|