senc

commit 8147d12ea5286413afdbe33426c89134ac7033c2
Author: Vetle Haflan <vetle@haflan.dev>
Date:   Sun, 22 Mar 2020 21:04:20 +0100

Initial commit

Diffstat:
A
senc.c
 | 
161
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

1 file changed, 161 insertions(+), 0 deletions(-)
diff --git a/senc.c b/senc.c
@@ -0,0 +1,161 @@
+#include <ctype.h>
+#include <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+// IDEA: Color results based on match level
+// or even better, color matching characters
+
+#define MAX_RESULTS 50
+#define MAX_PATH_LENGTH 256
+
+/**
+ * Search match level
+ * WEAK example: search 'his ring' will match on 'this string' 
+ */
+enum {NONE, WEAK, NOCASE, EXACT};
+
+FILE * fp;
+typedef struct {
+	char * filename;
+	int matchlvl;
+} match;
+
+int match_i = 0;
+match matches[MAX_RESULTS];
+
+int
+search(char * search_string, char * filename) {
+	int search_len = strlen(search_string);
+	int filename_len = strlen(filename);
+	if (search_len > filename_len) {
+		return NONE;
+	}
+	// Exact matches
+	int mchars = 0;
+	for (int i = 0; i < filename_len; i++) {
+		if (search_string[mchars] == filename[i]) {
+			mchars++;
+		} else {
+			mchars = 0;
+		}
+		if (mchars == search_len) {
+			return EXACT;
+		}
+	}
+	// Case insensitive matches
+	mchars = 0;
+	for (int i = 0; i < filename_len; i++) {
+		if (tolower(search_string[mchars]) == tolower(filename[i])) {
+			mchars++;
+		} else {
+			mchars = 0;
+		}
+		if (mchars == search_len) {
+			return NOCASE;
+		}
+	}
+	// Weak matches
+	mchars = 0;
+	for (int i = 0; i < filename_len; i++) {
+		if (tolower(search_string[mchars]) == tolower(filename[i])) {
+			mchars++;
+		}
+		if (mchars == search_len) {
+			return WEAK;
+		}
+	}
+	return NONE;
+}
+
+
+/**
+ * Searches favorite paths and stores matches in global var
+ */
+int
+search_favs(char * search_string) {
+	char buf[LINE_MAX];
+	int line_match;
+	int read_chars;
+	// TODO: Find out if getline is the preferred way
+	while (fgets(buf, LINE_MAX, fp)) {
+		line_match = search(search_string, buf);
+		int len = strlen(buf);
+		if (buf[len - 1] == '\n') {
+			buf[len - 1] = '\0';
+		}
+		if (line_match == NONE) {
+			continue;
+		}
+		// Have to copy string, because setting 
+		// filename = buf, will just make all filenames point to
+		// the same memory location and overwrite each other.
+		strcpy(matches[match_i].filename, buf);
+		matches[match_i].matchlvl = line_match;
+		match_i++;
+		if (match_i == MAX_RESULTS) {
+			return 0;
+		}
+	}
+}
+
+int
+add_entry(char * new) {
+	char *line = NULL;
+	size_t len = 0;
+	ssize_t nread;
+
+	/*
+	const char * str = "Hello yy'aaalll\n";
+	fwrite(str, sizeof(char), strlen(str), f);
+	if (errno) {
+		printf("errno = %d\n", errno);
+	}
+	*/
+	return 0;
+}
+
+/**
+ * Sort matches by matchlvl
+ */
+int
+compare_matches(const void * e1, const void * e2) {
+	match m1 = *((match*) e1);
+	match m2 = *((match*) e2);
+	return m2.matchlvl - m1.matchlvl;
+}
+
+void
+free_matches() {
+
+}
+
+int
+main(int nargs, char ** args) {
+	char * favs_file;
+	char * term;
+	int i;
+	if (nargs < 3) {
+		favs_file = strcat(getenv("HOME"), "/.sencs");
+		term = args[1];
+	} else {
+		favs_file = args[1];
+		term = args[2];
+	}
+	if ((fp = fopen(favs_file, "a+")) == NULL) {
+		perror("fopen");
+		exit(EXIT_FAILURE);
+	}
+	for (i = 0; i < MAX_RESULTS; i++) {
+		matches[i].filename = malloc(LINE_MAX);
+	}
+	search_favs(term);
+	qsort(matches, match_i, sizeof(match), compare_matches);
+	for (i = 0; i < match_i; i++) {
+		printf("%s\t%d\n", matches[i].filename, matches[i].matchlvl);
+	}
+	fclose(fp);
+}