From 6d111c93430690c37d102a769542841d833ea149 Mon Sep 17 00:00:00 2001
From: Benno Schulenberg <bensberg@telfort.nl>
Date: Sat, 20 Jan 2018 13:01:43 +0100
Subject: [PATCH] new feature: allow binding a key to a string (in a nanorc
file)
In this way a single keystroke can produce a fragment of text or a
series of commands, or a mix of the two. It is like a prerecorded
macro.
This fulfills https://savannah.gnu.org/bugs/?52931.
---
src/global.c | 14 ++++++++++++++
src/nano.c | 3 ++-
src/nano.h | 2 ++
src/prompt.c | 2 +-
src/proto.h | 3 +++
src/rcfile.c | 14 ++++++++++++--
6 files changed, 34 insertions(+), 4 deletions(-)
diff --git a/src/global.c b/src/global.c
index 20eeb62c..d6af4e7d 100644
--- a/src/global.c
+++ b/src/global.c
@@ -318,6 +318,9 @@ void flip_newbuffer(void)
void discard_buffer(void)
{
}
+void implant(void)
+{
+}
/* Add a function to the function list. */
void add_to_funcs(void (*func)(void), int menus, const char *desc, const char *help,
@@ -1379,6 +1382,17 @@ void set_spell_shortcuts(void)
}
#endif /* ENABLE_COLOR && ENABLE_SPELLER */
+/* Execute the function of the given shortcut. */
+void execute(const sc *shortcut)
+{
+ if (shortcut->scfunc == implant)
+ /* Insert the corresponding string into the keyboard buffer. */
+ for (int i = strlen(shortcut->expansion); i > 0; i--)
+ put_back(shortcut->expansion[i - 1]);
+ else
+ shortcut->scfunc();
+}
+
const subnfunc *sctofunc(const sc *s)
{
subnfunc *f = allfuncs;
diff --git a/src/nano.c b/src/nano.c
index 12543dd4..c57b457d 100644
--- a/src/nano.c
+++ b/src/nano.c
@@ -1753,7 +1753,8 @@ int do_input(bool allow_funcs)
}
#endif
/* Execute the function of the shortcut. */
- s->scfunc();
+ execute(s);
+
#ifndef NANO_TINY
/* When the marked region changes without Shift being held,
* discard a soft mark. And when the marked region covers a
diff --git a/src/nano.h b/src/nano.h
index 92f8e296..44d71949 100644
--- a/src/nano.h
+++ b/src/nano.h
@@ -439,6 +439,8 @@ typedef struct sc {
int ordinal;
/* The how-manieth toggle this is, in order to be able to
* keep them in sequence. */
+ char *expansion;
+ /* The string of keycodes to which this shortcut is expanded. */
#endif
struct sc *next;
/* Next in the list. */
diff --git a/src/prompt.c b/src/prompt.c
index c067a3fb..0b73c40b 100644
--- a/src/prompt.c
+++ b/src/prompt.c
@@ -180,7 +180,7 @@ int do_statusbar_input(bool *ran_func, bool *finished)
*ran_func = TRUE;
if (f && (!ISSET(VIEW_MODE) || f->viewok) &&
f->scfunc != do_gotolinecolumn_void)
- f->scfunc();
+ execute(s);
}
*finished = TRUE;
}
diff --git a/src/proto.h b/src/proto.h
index c4f6f074..18995490 100644
--- a/src/proto.h
+++ b/src/proto.h
@@ -318,6 +318,7 @@ char *input_tab(char *buf, bool allow_files, size_t *place,
/* Some functions in global.c. */
size_t length_of_list(int menu);
+void implant(void);
const sc *first_sc_for(int menu, void (*func)(void));
int the_code_for(void (*func)(void), int defaultval);
functionptrtype func_from_key(int *kbinput);
@@ -329,6 +330,7 @@ void shortcut_init(void);
void set_lint_or_format_shortcuts(void);
void set_spell_shortcuts(void);
#endif
+void execute(const sc *shortcut);
const subnfunc *sctofunc(const sc *s);
const char *flagtostr(int flag);
sc *strtosc(const char *input);
@@ -619,6 +621,7 @@ void dump_filestruct(const filestruct *inptr);
void record_macro(void);
void run_macro(void);
size_t get_key_buffer_len(void);
+void put_back(int keycode);
void unget_kbinput(int kbinput, bool metakey);
int get_kbinput(WINDOW *win, bool showcursor);
int parse_kbinput(WINDOW *win);
diff --git a/src/rcfile.c b/src/rcfile.c
index ddfbd003..84dc57aa 100644
--- a/src/rcfile.c
+++ b/src/rcfile.c
@@ -336,6 +336,7 @@ bool is_universal(void (*func)(void))
func == do_home || func == do_end ||
#ifndef NANO_TINY
func == do_prev_word_void || func == do_next_word_void ||
+ func == implant ||
#endif
func == do_delete || func == do_backspace ||
func == do_cut_text_void || func == do_uncut_text ||
@@ -396,7 +397,7 @@ void parse_binding(char *ptr, bool dobind)
if (dobind) {
funcptr = ptr;
- ptr = parse_next_word(ptr);
+ ptr = parse_argument(ptr);
if (funcptr[0] == '\0') {
rcfile_error(N_("Must specify a function to bind the key to"));
@@ -414,7 +415,16 @@ void parse_binding(char *ptr, bool dobind)
}
if (dobind) {
- newsc = strtosc(funcptr);
+ /* If the thing to bind starts with a double quote, it is a string,
+ * otherwise it is the name of a function. */
+ if (*funcptr == '"') {
+ newsc = nmalloc(sizeof(sc));
+ newsc->scfunc = implant;
+ newsc->expansion = mallocstrcpy(NULL, funcptr + 1);
+ newsc->toggle = 0;
+ } else
+ newsc = strtosc(funcptr);
+
if (newsc == NULL) {
rcfile_error(N_("Cannot map name \"%s\" to a function"), funcptr);
goto free_things;
--
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