diff options
| -rw-r--r-- | Makefile | 3 | ||||
| -rw-r--r-- | TODO | 1 | ||||
| -rw-r--r-- | libterminput.7 | 4 | ||||
| -rw-r--r-- | libterminput.c | 3 | ||||
| -rw-r--r-- | libterminput.h | 10 | ||||
| -rw-r--r-- | libterminput_is_ready.3 | 56 | ||||
| -rw-r--r-- | libterminput_read.3 | 1 |
7 files changed, 76 insertions, 2 deletions
@@ -58,7 +58,7 @@ install: libterminput.a libterminput.$(LIBEXT) cp -- libterminput.$(LIBEXT) "$(DESTDIR)$(PREFIX)/lib/libterminput.$(LIBMINOREXT)" ln -sf -- libterminput.$(LIBMINOREXT) "$(DESTDIR)$(PREFIX)/lib/libterminput.$(LIBMAJOREXT)" ln -sf -- libterminput.$(LIBMAJOREXT) "$(DESTDIR)$(PREFIX)/lib/libterminput.$(LIBEXT)" - cp -- libterminput_read.3 libterminput_set_flags.3 "$(DESTDIR)$(MANPREFIX)/man3" + cp -- libterminput_read.3 libterminput_set_flags.3 libterminput_is_ready.3 "$(DESTDIR)$(MANPREFIX)/man3" ln -sf -- libterminput_set_flags.3 "$(DESTDIR)$(MANPREFIX)/man3/libterminput_clear_flags.3" cp -- libterminput.7 "$(DESTDIR)$(MANPREFIX)/man7" @@ -71,6 +71,7 @@ uninstall: -rm -f -- "$(DESTDIR)$(MANPREFIX)/man3/libterminput_read.3" -rm -f -- "$(DESTDIR)$(MANPREFIX)/man3/libterminput_set_flags.3" -rm -f -- "$(DESTDIR)$(MANPREFIX)/man3/libterminput_clear_flags.3" + -rm -f -- "$(DESTDIR)$(MANPREFIX)/man3/libterminput_is_ready.3" -rm -f -- "$(DESTDIR)$(MANPREFIX)/man7/libterminput.7" clean: @@ -1,3 +1,2 @@ -Add libterminput_is_ready() Add cursor position report support Add test diff --git a/libterminput.7 b/libterminput.7 index db4c751..d56a6d3 100644 --- a/libterminput.7 +++ b/libterminput.7 @@ -13,6 +13,9 @@ libterminput provides the following functions: .BR libterminput_read (3) Read and parse input from the terminal. .TP +.BR libterminput_is_ready (3) +Check if there is read data buffered. +.TP .BR libterminput_set_flags (3) Add input parsing flags. .TP @@ -20,5 +23,6 @@ Add input parsing flags. Remove input parsing flags. .SH SEE ALSO +.BR libterminput_is_ready (3), .BR libterminput_read (3), .BR libterminput_set_flags (3) diff --git a/libterminput.c b/libterminput.c index 7ca36de..147e756 100644 --- a/libterminput.c +++ b/libterminput.c @@ -888,3 +888,6 @@ libterminput_clear_flags(struct libterminput_state *ctx, enum libterminput_flags ctx->flags ^= flags; return 0; } + + +extern inline int libterminput_is_ready(union libterminput_input *input, struct libterminput_state *ctx); diff --git a/libterminput.h b/libterminput.h index 45ac2a4..0182a54 100644 --- a/libterminput.h +++ b/libterminput.h @@ -183,6 +183,16 @@ struct libterminput_state { */ int libterminput_read(int fd, union libterminput_input *input, struct libterminput_state *ctx); +inline int +libterminput_is_ready(union libterminput_input *input, struct libterminput_state *ctx) +{ + if (!ctx->inited) + return 0; + if (input->type == LIBTERMINPUT_KEYPRESS && input->keypress.times > 1) + return 1; + return ctx->stored_head > ctx->stored_tail; +} + int libterminput_set_flags(struct libterminput_state *ctx, enum libterminput_flags flags); int libterminput_clear_flags(struct libterminput_state *ctx, enum libterminput_flags flags); diff --git a/libterminput_is_ready.3 b/libterminput_is_ready.3 new file mode 100644 index 0000000..293d60e --- /dev/null +++ b/libterminput_is_ready.3 @@ -0,0 +1,56 @@ +.TH LIBTERMINPUT_IS_READY 3 LIBTERMINPUT +.SH NAME +libterminput_is_ready \- Check if there is read data buffered + +.SH SYNOPSIS +.nf +#include <libterminput.h> + +inline int libterminput_is_ready(union libterminput_input *input, struct libterminput_state *ctx); +.fi +.PP +Link with +.IR \-lterminput . + +.SH DESCRIPTION +The +.BR libterminput_is_ready () +function check if a call to the +.BR libterminput_read (3) +function will skip reading from the file +descriptor passed to it because it already +has read data buffered. + +.SH RETURN VALUE +The +.BR libterminput_is_ready () +function return 1 if the next call to the +.BR libterminput_read (3) +function will not from file descriptor +passed to it, and 0 otherwise. + +.SH ERRORS +The +.BR libterminput_is_ready () +function cannot fail. + +.SH EXAMPLES +None. + +.SH APPLICATION USAGE +None. + +.SH RATIONALE +None. + +.SH FUTURE DIRECTIONS +None. + +.SH NOTES +None. + +.SH BUGS +None. + +.SH SEE ALSO +.BR libterminput_read (3) diff --git a/libterminput_read.3 b/libterminput_read.3 index 904342c..2cf401b 100644 --- a/libterminput_read.3 +++ b/libterminput_read.3 @@ -433,4 +433,5 @@ None. None. .SH SEE ALSO +.BR libterminput_is_ready (3), .BR libterminput_set_flags (3) |