Generate actions from a text file

Mostly because I wanted to nest preprocessing.

This makes the build more complex and slightly less portable,
but the code itself is much cleaner.
This commit is contained in:
Přemysl Eric Janouch 2021-11-08 02:13:57 +01:00
parent 66c77c3f8d
commit 4598c45d2f
Signed by: p
GPG Key ID: A0420B94F92B9493
4 changed files with 93 additions and 115 deletions

View File

@ -90,8 +90,22 @@ configure_file (${PROJECT_SOURCE_DIR}/config.h.in
${PROJECT_BINARY_DIR}/config.h)
include_directories (${PROJECT_SOURCE_DIR} ${PROJECT_BINARY_DIR})
# Assuming a Unix-compatible system with a standalone preprocessor
set (actions ${PROJECT_BINARY_DIR}/nncmpp-actions.h)
add_custom_command (OUTPUT ${actions}
COMMAND cpp -I${PROJECT_BINARY_DIR} -P ${PROJECT_SOURCE_DIR}/nncmpp.actions
| grep . | tr [[\n]] [[\t]] | sed -ne [[y/\t/\n/]] > ${actions}
-e [[h; s/,[^\n]*/,/g]] -e [[s/$/COUNT/]]
-e [[s/[^\n]*/\tACTION_&/g]] -e [[s/.*/enum action {\n&\n};\n/p]]
-e [[g; s/,[^\n]*//g; y/_/-/]] -e [[s/[^\n]\{1,\}/\t"&",/g]]
-e [[s/.*/static const char *g_action_names[] = {\n&};\n/p]]
-e [[g; s/[^\n]*, //g;]] -e [[s/[^\n]\{1,\}/\t"&",/g]]
-e [[s/.*/static const char *g_action_descriptions[] = {\n&};/p]]
COMMAND test -s ${actions}
DEPENDS ${PROJECT_BINARY_DIR}/config.h VERBATIM)
# Build the main executable and link it
add_executable (${PROJECT_NAME} ${PROJECT_NAME}.c)
add_executable (${PROJECT_NAME} ${PROJECT_NAME}.c ${actions})
target_link_libraries (${PROJECT_NAME} ${Unistring_LIBRARIES}
${Ncursesw_LIBRARIES} termo-static ${curl_LIBRARIES} ${extra_libraries})
add_threads (${PROJECT_NAME})

View File

@ -1,12 +1,11 @@
#ifndef CONFIG_H
#define CONFIG_H
#define PROGRAM_NAME "${CMAKE_PROJECT_NAME}"
#define PROGRAM_NAME "${PROJECT_NAME}"
#define PROGRAM_VERSION "${PROJECT_VERSION}"
#cmakedefine HAVE_RESIZETERM
#cmakedefine WITH_FFTW
#cmakedefine WITH_PULSE
#endif // ! CONFIG_H
#endif /* ! CONFIG_H */

71
nncmpp.actions Normal file
View File

@ -0,0 +1,71 @@
#include "config.h"
NONE, Do nothing
QUIT, Quit
REDRAW, Redraw screen
TAB_HELP, Switch to help tab
TAB_LAST, Switch to last tab
TAB_PREVIOUS, Switch to previous tab
TAB_NEXT, Switch to next tab
MPD_TOGGLE, Toggle play/pause
MPD_STOP, Stop playback
MPD_PREVIOUS, Previous song
MPD_NEXT, Next song
MPD_BACKWARD, Seek backwards
MPD_FORWARD, Seek forwards
MPD_VOLUME_UP, Increase volume
MPD_VOLUME_DOWN, Decrease volume
MPD_SEARCH, Global search
MPD_ADD, Add selection to playlist
MPD_REPLACE, Replace playlist
MPD_REPEAT, Toggle repeat
MPD_RANDOM, Toggle random playback
MPD_SINGLE, Toggle single song playback
MPD_CONSUME, Toggle consume
MPD_UPDATE_DB, Update MPD database
MPD_COMMAND, Send raw command to MPD
#ifdef WITH_PULSE
PULSE_VOLUME_UP, Increase PulseAudio volume
PULSE_VOLUME_DOWN, Decrease PulseAudio volume
PULSE_MUTE, Toggle mute of MPD PulseAudio sink
#endif
CHOOSE, Choose item
DELETE, Delete item
UP, Go up a level
MULTISELECT, Toggle multiselect
SCROLL_UP, Scroll up
SCROLL_DOWN, Scroll down
MOVE_UP, Move selection up
MOVE_DOWN, Move selection down
GOTO_TOP, Go to top
GOTO_BOTTOM, Go to bottom
GOTO_ITEM_PREVIOUS, Go to previous item
GOTO_ITEM_NEXT, Go to next item
GOTO_PAGE_PREVIOUS, Go to previous page
GOTO_PAGE_NEXT, Go to next page
GOTO_VIEW_TOP, Select top item
GOTO_VIEW_CENTER, Select center item
GOTO_VIEW_BOTTOM, Select bottom item
EDITOR_CONFIRM, Confirm input
EDITOR_B_CHAR, Go back a character
EDITOR_F_CHAR, Go forward a character
EDITOR_B_WORD, Go back a word
EDITOR_F_WORD, Go forward a word
EDITOR_HOME, Go to start of line
EDITOR_END, Go to end of line
EDITOR_B_DELETE, Delete last character
EDITOR_F_DELETE, Delete next character
EDITOR_B_KILL_WORD, Delete last word
EDITOR_B_KILL_LINE, Delete everything up to BOL
EDITOR_F_KILL_LINE, Delete everything up to EOL

116
nncmpp.c
View File

@ -2235,117 +2235,14 @@ app_goto_tab (int tab_index)
// --- Actions -----------------------------------------------------------------
#ifdef WITH_PULSE
#define WITH_PULSE_01 1
#else
#define WITH_PULSE_01 0
#endif
// TODO: use the C preprocessor and a tool to generate this from nncmpp.actions
#define ACTIONS(XX) \
XX( 1, NONE, Do nothing ) \
\
XX( 1, QUIT, Quit ) \
XX( 1, REDRAW, Redraw screen ) \
XX( 1, TAB_HELP, Switch to help tab ) \
XX( 1, TAB_LAST, Switch to last tab ) \
XX( 1, TAB_PREVIOUS, Switch to previous tab ) \
XX( 1, TAB_NEXT, Switch to next tab ) \
\
XX( 1, MPD_TOGGLE, Toggle play/pause ) \
XX( 1, MPD_STOP, Stop playback ) \
XX( 1, MPD_PREVIOUS, Previous song ) \
XX( 1, MPD_NEXT, Next song ) \
XX( 1, MPD_BACKWARD, Seek backwards ) \
XX( 1, MPD_FORWARD, Seek forwards ) \
XX( 1, MPD_VOLUME_UP, Increase volume ) \
XX( 1, MPD_VOLUME_DOWN, Decrease volume ) \
\
XX( 1, MPD_SEARCH, Global search ) \
XX( 1, MPD_ADD, Add selection to playlist ) \
XX( 1, MPD_REPLACE, Replace playlist ) \
XX( 1, MPD_REPEAT, Toggle repeat ) \
XX( 1, MPD_RANDOM, Toggle random playback ) \
XX( 1, MPD_SINGLE, Toggle single song playback ) \
XX( 1, MPD_CONSUME, Toggle consume ) \
XX( 1, MPD_UPDATE_DB, Update MPD database ) \
XX( 1, MPD_COMMAND, Send raw command to MPD ) \
\
XX( WITH_PULSE_01, PULSE_VOLUME_UP, Increase PulseAudio volume ) \
XX( WITH_PULSE_01, PULSE_VOLUME_DOWN, Decrease PulseAudio volume ) \
XX( WITH_PULSE_01, PULSE_MUTE, Toggle mute of MPD PulseAudio sink ) \
\
XX( 1, CHOOSE, Choose item ) \
XX( 1, DELETE, Delete item ) \
XX( 1, UP, Go up a level ) \
XX( 1, MULTISELECT, Toggle multiselect ) \
\
XX( 1, SCROLL_UP, Scroll up ) \
XX( 1, SCROLL_DOWN, Scroll down ) \
XX( 1, MOVE_UP, Move selection up ) \
XX( 1, MOVE_DOWN, Move selection down ) \
\
XX( 1, GOTO_TOP, Go to top ) \
XX( 1, GOTO_BOTTOM, Go to bottom ) \
XX( 1, GOTO_ITEM_PREVIOUS, Go to previous item ) \
XX( 1, GOTO_ITEM_NEXT, Go to next item ) \
XX( 1, GOTO_PAGE_PREVIOUS, Go to previous page ) \
XX( 1, GOTO_PAGE_NEXT, Go to next page ) \
\
XX( 1, GOTO_VIEW_TOP, Select top item ) \
XX( 1, GOTO_VIEW_CENTER, Select center item ) \
XX( 1, GOTO_VIEW_BOTTOM, Select bottom item ) \
\
XX( 1, EDITOR_CONFIRM, Confirm input ) \
\
XX( 1, EDITOR_B_CHAR, Go back a character ) \
XX( 1, EDITOR_F_CHAR, Go forward a character ) \
XX( 1, EDITOR_B_WORD, Go back a word ) \
XX( 1, EDITOR_F_WORD, Go forward a word ) \
XX( 1, EDITOR_HOME, Go to start of line ) \
XX( 1, EDITOR_END, Go to end of line ) \
\
XX( 1, EDITOR_B_DELETE, Delete last character ) \
XX( 1, EDITOR_F_DELETE, Delete next character ) \
XX( 1, EDITOR_B_KILL_WORD, Delete last word ) \
XX( 1, EDITOR_B_KILL_LINE, Delete everything up to BOL ) \
XX( 1, EDITOR_F_KILL_LINE, Delete everything up to EOL )
enum action
{
#define XX(usable, name, description) ACTION_ ## name,
ACTIONS (XX)
#undef XX
ACTION_COUNT
};
static struct action_info
{
const char *name; ///< Name for user bindings
const char *description; ///< Human-readable description
bool usable; ///< Usable?
}
g_actions[] =
{
#define XX(usable, name, description) { #name, #description, usable },
ACTIONS (XX)
#undef XX
};
/// Accept a more human format of action-name instead of ACTION_NAME
static int action_toupper (int c) { return c == '-' ? '_' : toupper_ascii (c); }
#include "nncmpp-actions.h"
static int
action_resolve (const char *name)
{
const unsigned char *s = (const unsigned char *) name;
for (int i = 0; i < ACTION_COUNT; i++)
{
const char *target = g_actions[i].name;
for (size_t k = 0; action_toupper (s[k]) == target[k]; k++)
if (!s[k] && !target[k])
return i;
}
if (!strcasecmp_ascii (g_action_names[i], name))
return i;
return -1;
}
@ -3943,9 +3840,6 @@ help_tab_group (struct binding *keys, size_t len, struct strv *out,
{
for (enum action i = 0; i < ACTION_COUNT; i++)
{
if (!g_actions[i].usable)
continue;
struct strv ass = strv_make ();
for (size_t k = 0; k < len; k++)
if (keys[k].action == i)
@ -3954,7 +3848,7 @@ help_tab_group (struct binding *keys, size_t len, struct strv *out,
{
char *joined = strv_join (&ass, ", ");
strv_append_owned (out, xstrdup_printf
(" %-30s %s", g_actions[i].description, joined));
(" %-30s %s", g_action_descriptions[i], joined));
free (joined);
bound[i] = true;
@ -3971,7 +3865,7 @@ help_tab_unbound (struct strv *out, bool bound[ACTION_COUNT])
if (!bound[i])
{
strv_append_owned (out,
xstrdup_printf (" %-30s", g_actions[i].description));
xstrdup_printf (" %-30s", g_action_descriptions[i]));
help_tab_assign_action (i);
}
}