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Implement vim-like marks

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Commands are 'mark' and 'goto'. Both can be used either directly,
like 'mark a' and 'goto a', or interactively (just 'mark'). For
interactive mode, i3-input must be installed and in your PATH.
This commit is contained in:
Michael Stapelberg
2009-09-20 16:54:29 +02:00
parent 6510b0e14f
commit 3ada8f326c
7 changed files with 200 additions and 32 deletions
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49
i3-input/ucs2_to_utf8.c
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@ -10,10 +10,12 @@
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <err.h>
#include <iconv.h>
static iconv_t conversion_descriptor = 0;
static iconv_t conversion_descriptor2 = 0;
/*
* Returns the input string, but converted from UCS-2 to UTF-8. Memory will be
@ -53,3 +55,50 @@ char *convert_ucs_to_utf8(char *input) {
return buffer;
}
/*
* Converts the given string to UCS-2 big endian for use with
* xcb_image_text_16(). The amount of real glyphs is stored in real_strlen,
* a buffer containing the UCS-2 encoded string (16 bit per glyph) is
* returned. It has to be freed when done.
*
*/
char *convert_utf8_to_ucs2(char *input, int *real_strlen) {
size_t input_size = strlen(input) + 1;
/* UCS-2 consumes exactly two bytes for each glyph */
int buffer_size = input_size * 2;
char *buffer = malloc(buffer_size);
if (buffer == NULL)
err(EXIT_FAILURE, "malloc() failed\n");
size_t output_size = buffer_size;
/* We need to use an additional pointer, because iconv() modifies it */
char *output = buffer;
/* We convert the input into UCS-2 big endian */
if (conversion_descriptor2 == 0) {
conversion_descriptor2 = iconv_open("UCS-2BE", "UTF-8");
if (conversion_descriptor2 == 0) {
fprintf(stderr, "error opening the conversion context\n");
exit(1);
}
}
/* Get the conversion descriptor back to original state */
iconv(conversion_descriptor2, NULL, NULL, NULL, NULL);
/* Convert our text */
int rc = iconv(conversion_descriptor2, (void*)&input, &input_size, &output, &output_size);
if (rc == (size_t)-1) {
perror("Converting to UCS-2 failed");
if (real_strlen != NULL)
*real_strlen = 0;
return NULL;
}
if (real_strlen != NULL)
*real_strlen = ((buffer_size - output_size) / 2) - 1;
return buffer;
}