Zach's git repos / swipeGuess
Simple utility to turn swipes into words -- "plugin" for wvkbd to enable swipe-typing under wayland SXMO.
Diffstat (limited to 'swipeGuess.c')
-rw-r--r--swipeGuess.c86
1 files changed, 86 insertions, 0 deletions
diff --git a/swipeGuess.c b/swipeGuess.c
new file mode 100644
index 0000000..b13e5b5
--- /dev/null
+++ b/swipeGuess.c
@@ -0,0 +1,86 @@
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <ctype.h>
+
+#define BUFSIZE 1024
+char wordBuff[BUFSIZE];
+char swipeBuff[BUFSIZE];
+bool ignorechars[256] = {false};
+
+// 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 charcmp(char a, char b) {
+ return tolower(a) == tolower(b);
+}
+
+bool swipeCompare(char *swipe, char *word) {
+ if (! charcmp(swipe[0], word[0])) {
+ return false;
+ }
+ char *swipeP = swipe;
+ char *wordP = word;
+ wordP++;
+ bool lastMatch = false;
+ for(swipeP++; swipeP[0]; swipeP++) {
+ lastMatch = false;
+ while (charcmp(swipeP[0], wordP[0]) || ignorechars[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]\n");
+ exit(1);
+ }
+ int n = 1;
+ if (argc >= 3) {
+ n = atoi(argv[2]);
+ }
+ if (argc >= 4) {
+ for(int i=0; argv[3][i];i++){
+ ignorechars[(int)argv[3][0]] = true;
+ }
+ }
+ FILE *wordFile = fopen(argv[1], "r");
+ while (fgetst(swipeBuff, BUFSIZE, stdin)) {
+ query(wordFile, swipeBuff, n);
+ printf("\n");
+ fflush(stdout);
+ }
+ fclose(wordFile);
+}