Add support for scroll(1)
Scroll is a program that stores all the lines of its child and be used in st as a way of implementing scrollback. This solution is much better than implementing the scrollback in st itself because having a different program allows to use it in any other program without doing modifications to those programs.master
parent
5703aa0390
commit
21e0d6e8b8
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@ -11,13 +11,14 @@ static int borderpx = 2;
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/*
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/*
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* What program is execed by st depends of these precedence rules:
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* What program is execed by st depends of these precedence rules:
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* 1: program passed with -e
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* 1: program passed with -e
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* 2: utmp option
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* 2: scroll and/or utmp
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* 3: SHELL environment variable
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* 3: SHELL environment variable
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* 4: value of shell in /etc/passwd
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* 4: value of shell in /etc/passwd
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* 5: value of shell in config.h
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* 5: value of shell in config.h
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*/
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*/
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static char *shell = "/bin/sh";
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static char *shell = "/bin/sh";
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char *utmp = NULL;
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char *utmp = NULL;
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char *scroll = NULL;
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char *stty_args = "stty raw pass8 nl -echo -iexten -cstopb 38400";
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char *stty_args = "stty raw pass8 nl -echo -iexten -cstopb 38400";
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/* identification sequence returned in DA and DECID */
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/* identification sequence returned in DA and DECID */
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3
st.1
3
st.1
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@ -170,7 +170,8 @@ See the LICENSE file for the terms of redistribution.
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.SH SEE ALSO
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.SH SEE ALSO
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.BR tabbed (1),
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.BR tabbed (1),
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.BR utmp (1),
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.BR utmp (1),
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.BR stty (1)
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.BR stty (1),
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.BR scroll (1)
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.SH BUGS
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.SH BUGS
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See the TODO file in the distribution.
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See the TODO file in the distribution.
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16
st.c
16
st.c
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@ -664,7 +664,7 @@ die(const char *errstr, ...)
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void
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void
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execsh(char *cmd, char **args)
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execsh(char *cmd, char **args)
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{
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{
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char *sh, *prog;
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char *sh, *prog, *arg;
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const struct passwd *pw;
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const struct passwd *pw;
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errno = 0;
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errno = 0;
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@ -678,13 +678,17 @@ execsh(char *cmd, char **args)
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if ((sh = getenv("SHELL")) == NULL)
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if ((sh = getenv("SHELL")) == NULL)
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sh = (pw->pw_shell[0]) ? pw->pw_shell : cmd;
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sh = (pw->pw_shell[0]) ? pw->pw_shell : cmd;
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if (args)
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if (args) {
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prog = args[0];
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prog = args[0];
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else if (utmp)
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arg = NULL;
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prog = utmp;
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} else if (scroll || utmp) {
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else
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prog = scroll ? scroll : utmp;
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arg = scroll ? utmp : NULL;
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} else {
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prog = sh;
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prog = sh;
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DEFAULT(args, ((char *[]) {prog, NULL}));
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arg = NULL;
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}
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DEFAULT(args, ((char *[]) {prog, arg, NULL}));
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unsetenv("COLUMNS");
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unsetenv("COLUMNS");
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unsetenv("LINES");
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unsetenv("LINES");
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1
st.h
1
st.h
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@ -113,6 +113,7 @@ char *xstrdup(char *);
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/* config.h globals */
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/* config.h globals */
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extern char *utmp;
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extern char *utmp;
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extern char *scroll;
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extern char *stty_args;
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extern char *stty_args;
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extern char *vtiden;
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extern char *vtiden;
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extern wchar_t *worddelimiters;
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extern wchar_t *worddelimiters;
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