Simple utility to turn swipes into words -- "plugin" for wvkbd to enable swipe-typing under wayland SXMO.
swipeGuess: rewrite in C
For 10-300x speedup
| -rw-r--r-- | swipeGuess.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/swipeGuess.c b/swipeGuess.c new file mode 100644 index 0000000..dad4548 --- /dev/null +++ b/swipeGuess.c @@ -0,0 +1,73 @@ +#include <stdbool.h> +#include <stdio.h> +#include <stdlib.h> + +#define BUFSIZE 1024 +char wordBuff[BUFSIZE]; +char swipeBuff[BUFSIZE]; + +// fgets, but without the newline. +char *fgetst(char *restrict s, int size, FILE *restrict stream) { + char *r = fgets(s, size, stream); + if (r) { + char * sp = s; + for(; sp[0] != '\0'; sp++) { + if (sp[0] == '\n') { + sp[0] = '\0'; + } + } + } + return r; +} + +bool swipeCompare(char *swipe, char *word) { + if (swipe[0] != word[0]) return false; + char *swipeP = swipe; + char *wordP = word; + wordP++; + bool lastMatch = false; + for(swipeP++; swipeP[0]; swipeP++) { + lastMatch = false; + while (swipeP[0] == wordP[0]) { + wordP++; + lastMatch = true; + } + } + + if (wordP[0] == '\0' && lastMatch) { + return true; + } + return false; +} +void query(FILE *wordFile, char *swipe, int n) { + // TODO: UTF-8 len checking? + if (swipe[0] == '\0' || swipe[1] == '\0') return; + fseek(wordFile, 0, SEEK_SET); + int found = 0; + + while (found < n && fgetst(wordBuff, BUFSIZE, wordFile)) { + if (swipeCompare(swipe, wordBuff)) { + if (found > 0) printf("\t"); + printf("%s", wordBuff); + found++; + } + } +} + +int main(int argc, char **argv) { + if (argc < 2) { + fprintf(stderr, "Usage: swipeGuess words.txt [n]"); + exit(1); + } + int n = 1; + if (argc >= 3) { + n = atoi(argv[2]); + } + FILE *wordFile = fopen(argv[1], "r"); + while (fgetst(swipeBuff, BUFSIZE, stdin)) { + query(wordFile, swipeBuff, n); + printf("\n"); + fflush(stdout); + } + fclose(wordFile); +} |