add .prompt and .title file handling - lchat - A line oriented chat front end for ii.
(HTM) git clone git://git.suckless.org/lchat
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(DIR) README
---
(DIR) commit 3a2446ff8f1e0d30bf3b1ee02617e15020bc829a
(DIR) parent 595d8b5e4d763305139cbd482a8c469f9e926494
(HTM) Author: Jan Klemkow <j.klemkow@wemelug.de>
Date: Mon, 11 Jan 2016 21:49:31 +0100
add .prompt and .title file handling
add the possibility to set prompt and window title by file.
Diffstat:
M lchat.1 | 6 +++++-
M lchat.c | 52 +++++++++++++++++++++++++++----
2 files changed, 51 insertions(+), 7 deletions(-)
---
(DIR) diff --git a/lchat.1 b/lchat.1
@@ -49,7 +49,7 @@ as prompt for the input line.
.It Fl t Ar title
Use
.Ar title
-as title terminal window.
+as title for the terminal window.
In a
.Xr tmux 1
or
@@ -84,6 +84,10 @@ If this file exists and has executable permissions, it is used as a filter
program for the output lines.
This program should read raw lines from stdin and outputs filtered or
transformed lines to stdout.
+.It .prompt
+contains the prompt string.
+.It .title
+contains the terminal window title.
.El
.Sh SEE ALSO
.Xr tail 1 ,
(DIR) diff --git a/lchat.c b/lchat.c
@@ -51,6 +51,35 @@ exit_handler(void)
err(EXIT_FAILURE, "tcsetattr");
}
+static char *
+read_file_line(const char *file)
+{
+ FILE *fh;
+ char buf[BUFSIZ];
+ char *line = NULL;
+ char *nl = NULL;
+
+ if (access(file, R_OK) == -1)
+ return NULL;
+
+ if ((fh = fopen(file, "r")) == NULL)
+ err(EXIT_FAILURE, "fopen");
+
+ if (fgets(buf, sizeof buf, fh) == NULL)
+ err(EXIT_FAILURE, "fgets");
+
+ if (fclose(fh) == EOF)
+ err(EXIT_FAILURE, "fclose");
+
+ if ((nl = strchr(buf, '\n')) != NULL) /* delete new line */
+ *nl = '\0';
+
+ if ((line = strdup(buf)) == NULL)
+ err(EXIT_FAILURE ,"strdup");
+
+ return line;
+}
+
static bool
bell_match(const char *str, const char *regex_file)
{
@@ -114,7 +143,12 @@ main(int argc, char *argv[])
bool bell_flag = true;
char *bell_file = ".bellmatch";
size_t history_len = 5;
- char *prompt = ">";
+ char *prompt = read_file_line(".prompt");
+ char *title = read_file_line(".title");
+
+ if (prompt == NULL) /* set default prompt */
+ prompt = ">";
+
size_t prompt_len = strlen(prompt);
size_t loverhang = 0;
char *dir = ".";
@@ -149,11 +183,9 @@ main(int argc, char *argv[])
err(EXIT_FAILURE, "strdup");
prompt_len = strlen(prompt);
break;
- case 't': /* set optarg to terminal's window title */
- if (strcmp(getenv("TERM"), "screen") == 0)
- printf("\033k%s\033\\", optarg);
- else
- printf("\033]0;%s\a", optarg);
+ case 't':
+ if ((title = strdup(optarg)) == NULL)
+ err(EXIT_FAILURE, "strdup");
break;
case 'h':
default:
@@ -182,6 +214,14 @@ main(int argc, char *argv[])
if (isatty(fd) == 0)
err(EXIT_FAILURE, "isatty");
+ /* set optarg to terminal's window title */
+ if (title != NULL) {
+ if (strcmp(getenv("TERM"), "screen") == 0)
+ printf("\033k%s\033\\", title);
+ else
+ printf("\033]0;%s\a", title);
+ }
+
/* preprate terminal reset on exit */
if (tcgetattr(fd, &origin_term) == -1)
err(EXIT_FAILURE, "tcgetattr");