86 lines
2.2 KiB
C
86 lines
2.2 KiB
C
#include "search.h"
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#include <stdio.h> // for NULL
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#include <stdlib.h> // for free, malloc
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#include <string.h> // for memcpy, memset, strlen, strstr
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#include "fn.h" // for E, editorConfig, erow, editorPrompt, editorHighl...
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#include "row.h" // for editorRowRxToCx
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#include "hl.h" // for editorSelectSyntaxHighlight
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void editorSearchCallback(char *query, int key) {
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static int last_match = -1;
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static int direction = 1;
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static int saved_hl_line;
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static char *saved_hl = NULL;
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if (saved_hl) {
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memcpy(E.row[saved_hl_line].hl, saved_hl, E.row[saved_hl_line].rsize);
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free(saved_hl);
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saved_hl = NULL;
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}
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if (key == '\r' || key == '\x1b') {
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last_match = -1;
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direction = 1;
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// Clean up the syntax highlighting
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editorSelectSyntaxHighlight();
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return;
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} else if (key == ARROW_RIGHT || key == ARROW_DOWN) {
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direction = 1;
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} else if (key == ARROW_LEFT || key == ARROW_UP) {
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direction = -1;
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} else {
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last_match = -1;
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direction = 1;
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}
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if (last_match == -1) direction = 1;
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int current = last_match;
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int i;
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for (i=0; i < E.numrows; i++) {
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current += direction;
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if (current == -1) current = E.numrows -1;
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else if (current == E.numrows) current = 0;
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erow *row = &E.row[current];
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char *match = strstr(row->render, query);
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if (match) {
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last_match = current;
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E.cy = current;
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E.cx = editorRowRxToCx(row, match - row->render); // Substract pointers here
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// Reposition the cursor if needed
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if (E.cy < E.rowoff) {
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E.rowoff = E.cy;
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}
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if (E.cy >= E.rowoff + E.screenrows) {
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E.rowoff = E.cy - E.screenrows + 1;
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}
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saved_hl_line = current;
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saved_hl = malloc(row->rsize);
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memcpy(saved_hl, row->hl, row->rsize);
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memset(&row->hl[match - row->render], HL_MATCH, strlen(query));
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break;
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}
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}
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}
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void editorSearch() {
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int saved_cx = E.cx;
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int saved_cy = E.cy;
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int saved_coloff = E.coloff;
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int saved_rowoff = E.rowoff;
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char *query = editorPrompt("Search (Use Arrows/ESC/Enter): %s", editorSearchCallback);
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if (query) {
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free(query);
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} else {
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E.cx = saved_cx;
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E.cy = saved_cy;
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E.coloff = saved_coloff;
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E.rowoff = saved_rowoff;
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}
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}
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