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Add send_unicode_hex_string function (#3828)

* Add send_string_unicode function

Co-authored-by: kdb424 <kdb424@gmail.com>
Co-authored-by: Konstantin <vomindoraan@gmail.com>

* Clean up code based on feedback

* Fix includes
This commit is contained in:
Drashna Jaelre 2018-10-01 17:56:04 -07:00 committed by Jack Humbert
parent 26f4e7031a
commit f5ae3760c6
3 changed files with 35 additions and 1 deletions

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@ -19,7 +19,7 @@ table.
TBD
Unicode input in QMK works by inputing a sequence of characters to the OS,
sort of like macro. Unfortunately, each OS has different ideas on how Unicode is inputted.
sort of like macro. Unfortunately, each OS has different ideas on how Unicode is input.
This is the current list of Unicode input method in QMK:
@ -29,6 +29,11 @@ This is the current list of Unicode input method in QMK:
* UC_WIN: (not recommended) Windows built-in Unicode input. To enable: create registry key under `HKEY_CURRENT_USER\Control Panel\Input Method\EnableHexNumpad` of type `REG_SZ` called `EnableHexNumpad`, set its value to 1, and reboot. This method is not recommended because of reliability and compatibility issue, use WinCompose method below instead.
* UC_WINC: Windows Unicode input using WinCompose. Requires [WinCompose](https://github.com/samhocevar/wincompose). Works reliably under many (all?) variations of Windows.
To type multiple characters for things like (ノಠ痊ಠ)ノ彡┻━┻, you can use `send_unicode_hex_string()` much like `SEND_STRING()` except you would use hex values seperated by spaces.
For example, the table flip seen above would be `send_unicode_hex_string("0028 30CE 0CA0 75CA 0CA0 0029 30CE 5F61 253B 2501 253B")`
There are many ways to get a hex code, but an easy one is [this site](https://r12a.github.io/app-conversion/). Just make sure to convert to hexadecimal, and that is your string.
# Additional Language Support
In `quantum/keymap_extras/`, you'll see various language files - these work the same way as the alternative layout ones do. Most are defined by their two letter country/language code followed by an underscore and a 4-letter abbreviation of its name. `FR_UGRV` which will result in a `ù` when using a software-implemented AZERTY layout. It's currently difficult to send such characters in just the firmware.

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@ -16,6 +16,8 @@
#include "process_unicode_common.h"
#include "eeprom.h"
#include <string.h>
#include <ctype.h>
static uint8_t input_mode;
uint8_t mods;
@ -120,3 +122,29 @@ void register_hex(uint16_t hex) {
unregister_code(hex_to_keycode(digit));
}
}
void send_unicode_hex_string(const char *str)
{
if (!str) { return; } // Safety net
while (*str) {
// Find the next code point (token) in the string
for (; *str == ' '; str++);
size_t n = strcspn(str, " "); // Length of the current token
char code_point[n+1];
strncpy(code_point, str, n);
code_point[n] = '\0'; // Make sure it's null-terminated
// Normalize the code point: make all hex digits lowercase
for (char *p = code_point; *p; p++) {
*p = tolower((unsigned char)*p);
}
// Send the code point as a Unicode input string
unicode_input_start();
send_string(code_point);
unicode_input_finish();
str += n; // Move to the first ' ' (or '\0') after the current token
}
}

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@ -31,6 +31,7 @@ uint8_t get_unicode_input_mode(void);
void unicode_input_start(void);
void unicode_input_finish(void);
void register_hex(uint16_t hex);
void send_unicode_hex_string(const char *str);
#define UC_OSX 0 // Mac OS X
#define UC_LNX 1 // Linux