mscan: rename from scan

1 files changed, 164 insertions, 0 deletions

diff --git a/mscan.c b/mscan.c
new file mode 100644
index 0000000..d962d33
--- /dev/null
+++ b/mscan.c
@@ -0,0 +1,164 @@
+#define _GNU_SOURCE
+
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <errno.h>
+#include <fcntl.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <wchar.h>
+#include <locale.h>
+
+#include "blaze822.h"
+
+wchar_t replacement = '?';
+
+void
+u8putstr(FILE *out, char *s, size_t l, int pad)
+{
+	while (*s && l) {
+		if (*s >= 32 && *s < 127) {
+			putc(*s, out);
+			s++;
+			l--;
+		} else {
+			wchar_t wc;
+			int r = mbtowc(&wc, s, 4);
+			if (r < 0) {
+				r = 1;
+				wc = replacement;
+			}
+			s += r;
+			fprintf(out, "%lc", wc);
+			l -= wcwidth(wc);
+		}
+	}
+	if (pad)
+		while (l-- > 0)
+			putc(' ', out);
+}
+
+static char *cur;
+
+void
+oneline(char *file)
+{
+	int indent = 0;
+	while (*file == ' ' || *file == '\t') {
+		indent++;
+		file++;
+	}
+	indent *= 2;
+
+	char *e = file + strlen(file) - 1;
+	while (file < e && (*e == ' ' || *e == '\t'))
+		*e-- = 0;
+	
+	struct message *msg = blaze822(file);
+	if (!msg) {
+		int p = 80-38-3-indent;
+		printf("%*.*s\\_ %*.*s\n", -38 - indent, 38 + indent, "",
+		    -p, p, file);
+		return;
+	}
+
+	char flag1, flag2;
+
+	char *f = strstr(file, ":2,");
+        if (!f)
+		f = "";
+
+	if (strcmp(cur, file) == 0)
+		flag1 = '>';
+	else if (!strchr(f, 'S'))
+		flag1 = '.';
+	else if (strchr(f, 'T'))
+		flag1 = 'x';
+	else
+		flag1 = ' ';
+
+	if (strchr(f, 'F'))
+		flag2 = '*';
+	else if (strchr(f, 'R'))
+		flag2 = '-';
+	else
+		flag2 = ' ';
+
+	char date[16];
+        char *v;
+
+        if ((v = blaze822_hdr(msg, "date"))) {
+		time_t t = blaze822_date(v);
+		if (t != -1) {
+			struct tm *tm;
+			tm = localtime(&t);
+			strftime(date, sizeof date, "%Y-%m-%d", tm);
+		} else {
+			strcpy(date, "(invalid)");
+		}
+	} else {
+		strcpy(date, "(unknown)");
+		// mtime perhaps?
+	}
+
+
+	char *from = "(unknown)";
+        if ((v = blaze822_hdr(msg, "from"))) {
+		char *disp, *addr;
+		blaze822_addr(v, &disp, &addr);
+		if (*disp)
+			from = disp;
+		else if (*addr)
+			from = addr;
+		else
+			from = "(unknown)";
+	}
+
+	char fromdec[17];
+	blaze822_decode_rfc2047(fromdec, from, sizeof fromdec - 1, "UTF-8");
+	fromdec[sizeof fromdec - 1] = 0;
+
+	char *subj = "(no subject)";
+	char subjdec[100];
+        if ((v = blaze822_hdr(msg, "subject"))) {
+		subj = v;
+	}
+	blaze822_decode_rfc2047(subjdec, subj, sizeof subjdec - 1, "UTF-8");
+
+	long lineno = blaze822_seq_find(file);
+	if (lineno)
+		printf("%c%c %-3ld %-10s  ", flag1, flag2, lineno, date);
+	else
+		printf("%c%c     %-10s  ", flag1, flag2, date);
+	u8putstr(stdout, fromdec, 17, 1);
+	printf("  ");
+	int z;
+	for (z = 0; z < indent; z++)
+		printf(" ");
+	u8putstr(stdout, subjdec, 80-38-indent, 0);
+	printf("\n");
+
+	blaze822_free(msg);
+}
+
+int
+main(int argc, char *argv[])
+{
+	setlocale(LC_ALL, "");  // for wcwidth later
+	if (wcwidth(0xFFFD) > 0)
+		replacement = 0xFFFD;
+
+	char *seqmap = blaze822_seq_open(0);
+	blaze822_seq_load(seqmap);
+	cur = blaze822_seq_cur();
+
+	int i = blaze822_loop(argc-1, argv+1, oneline);
+
+	fprintf(stderr, "%d mails scanned\n", i);
+
+	return 0;
+}