st

suckless terminal - with my changes
git clone https://pi.duncano.de/git/st.git
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commit caa97cc781ccf29f28c3d9e6683a66eb3f70e2bd
parent c03548750b2527a6ddb5edfd945c5799066a6224
Author: Jan Christoph Ebersbach <jceb@e-jc.de>
Date:   Fri, 22 May 2015 16:06:57 +0200

Support UTF-8 characters as word delimiters

For a higher usefulness of the utf8strchr function, the index of the
UTF-8 character could be returned in addition with a Rune instead of a
char*.  Since utf8strchr is currently only used by ISDELIM I didn't
bother to increase the complexity.

Diffstat:
st.c | 18+++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/st.c b/st.c @@ -71,7 +71,7 @@ char *argv0; #define ISCONTROLC0(c) (BETWEEN(c, 0, 0x1f) || (c) == '\177') #define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f)) #define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c)) -#define ISDELIM(u) (BETWEEN(u, 0, 127) && strchr(worddelimiters, u) != NULL) +#define ISDELIM(u) (utf8strchr(worddelimiters, u) != NULL) #define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x) #define ATTRCMP(a, b) ((a).mode != (b).mode || (a).fg != (b).fg || (a).bg != (b).bg) #define IS_SET(flag) ((term.mode & (flag)) != 0) @@ -473,6 +473,7 @@ static size_t utf8decode(char *, Rune *, size_t); static Rune utf8decodebyte(char, size_t *); static size_t utf8encode(Rune, char *); static char utf8encodebyte(Rune, size_t); +static char *utf8strchr(char *s, Rune u); static size_t utf8validate(Rune *, size_t); static ssize_t xwrite(int, const char *, size_t); @@ -640,6 +641,21 @@ utf8encodebyte(Rune u, size_t i) { return utfbyte[i] | (u & ~utfmask[i]); } +char * +utf8strchr(char *s, Rune u) { + Rune r; + size_t i, j, len; + + len = strlen(s); + for(i = 0, j = 0; i < len; i += j) { + if(!(j = utf8decode(&s[i], &r, len - i))) + break; + if(r == u) + return &(s[i]); + } + return NULL; +} + size_t utf8validate(Rune *u, size_t i) { if(!BETWEEN(*u, utfmin[i], utfmax[i]) || BETWEEN(*u, 0xD800, 0xDFFF))