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Minor code simplifications in the reader and related libraries

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darcs-hash:20061016153226-ac50b-830735fadfdf578dfa4c686a2a6cd98df0e50c95.gz
This commit is contained in:
axel 2006-10-17 01:32:26 +10:00
parent 91009ac9aa
commit 5473711a20
2 changed files with 72 additions and 128 deletions
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191
reader.c
View File

@ -205,15 +205,10 @@ typedef struct reader_data
int *color; int *color;
/** /**
New color buffer, used for syntax highlighting. An array defining the block level at each character.
*/ */
int *indent; int *indent;
/**
Should the prompt command be reexecuted on the next repaint
*/
int exec_prompt;
/** /**
Function for tab completion Function for tab completion
*/ */
@ -269,11 +264,6 @@ static int end_loop = 0;
*/ */
static array_list_t current_filename; static array_list_t current_filename;
/**
List containing strings which make up the prompt
*/
static array_list_t prompt_list;
/** /**
Store the pid of the parent process, so the exit function knows whether it should reset the terminal or not. Store the pid of the parent process, so the exit function knows whether it should reset the terminal or not.
@ -300,7 +290,7 @@ static struct termios old_modes;
*/ */
static struct termios saved_modes; static struct termios saved_modes;
static void reader_super_highlight_me_plenty( int *color, int pos, array_list_t *error ); static void reader_super_highlight_me_plenty( int pos, array_list_t *error );
/** /**
Variable to keep track of forced exits - see \c reader_exit_forced(); Variable to keep track of forced exits - see \c reader_exit_forced();
@ -408,16 +398,11 @@ static void reader_kill( wchar_t *begin, int length, int mode, int new )
data->buff_len -= length; data->buff_len -= length;
memmove( begin, begin+length, sizeof( wchar_t )*(wcslen( begin+length )+1) ); memmove( begin, begin+length, sizeof( wchar_t )*(wcslen( begin+length )+1) );
reader_super_highlight_me_plenty( data->color, data->buff_pos, 0 ); reader_super_highlight_me_plenty( data->buff_pos, 0 );
repaint(); repaint();
} }
/**
string_buffer used as temporary storage for the reader_readline function
*/
static string_buffer_t *readline_buffer=0;
void reader_handle_int( int sig ) void reader_handle_int( int sig )
{ {
block_t *c = current_block; block_t *c = current_block;
@ -582,51 +567,42 @@ void reader_write_title()
set_color( FISH_COLOR_RESET, FISH_COLOR_RESET ); set_color( FISH_COLOR_RESET, FISH_COLOR_RESET );
} }
/** /**
Write the prompt to screen. If data->exec_prompt is set, the prompt Reexecute the prompt command. The output is inserted into data->prompt_buff.
command is first evaluated, and the title will be reexecuted as
well.
*/ */
static void calc_prompt() static void exec_prompt()
{ {
int i; int i;
/* array_list_t prompt_list;
Check if we need to reexecute the prompt command al_init( &prompt_list );
*/
if( data->exec_prompt ) if( data->prompt )
{ {
proc_push_interactive( 0 );
if( data->prompt ) if( exec_subshell( data->prompt, &prompt_list ) == -1 )
{ {
proc_push_interactive( 0 ); /* If executing the prompt fails, make sure we at least don't print any junk */
al_foreach( &prompt_list, &free );
if( exec_subshell( data->prompt, &prompt_list ) == -1 ) al_destroy( &prompt_list );
{ al_init( &prompt_list );
/* If executing the prompt fails, make sure we at least don't print any junk */
al_foreach( &prompt_list, &free );
al_destroy( &prompt_list );
al_init( &prompt_list );
}
proc_pop_interactive();
} }
proc_pop_interactive();
data->exec_prompt = 0;
reader_write_title();
sb_clear( &data->prompt_buff );
for( i=0; i<al_get_count( &prompt_list); i++ )
{
sb_append( &data->prompt_buff, (wchar_t *)al_get( &prompt_list, i ) );
}
al_foreach( &prompt_list, &free );
al_truncate( &prompt_list, 0 );
} }
reader_write_title();
sb_clear( &data->prompt_buff );
for( i=0; i<al_get_count( &prompt_list); i++ )
{
sb_append( &data->prompt_buff, (wchar_t *)al_get( &prompt_list, i ) );
}
al_foreach( &prompt_list, &free );
al_destroy( &prompt_list );
} }
void reader_init() void reader_init()
@ -649,14 +625,7 @@ void reader_init()
void reader_destroy() void reader_destroy()
{ {
al_destroy( &current_filename); al_destroy( &current_filename);
if( readline_buffer )
{
sb_destroy( readline_buffer );
free( readline_buffer );
readline_buffer=0;
}
tcsetattr(0, TCSANOW, &saved_modes); tcsetattr(0, TCSANOW, &saved_modes);
} }
@ -672,8 +641,6 @@ void reader_exit( int do_exit, int forced )
void repaint() void repaint()
{ {
calc_prompt();
parser_test( data->buff, data->indent, 0, 0 ); parser_test( data->buff, data->indent, 0, 0 );
s_write( &data->screen, s_write( &data->screen,
@ -705,27 +672,13 @@ static void remove_backward()
data->buff_len--; data->buff_len--;
data->buff[data->buff_len]=0; data->buff[data->buff_len]=0;
reader_super_highlight_me_plenty( data->color, reader_super_highlight_me_plenty( data->buff_pos,
data->buff_pos,
0 ); 0 );
repaint(); repaint();
} }
/**
Remove the current character in the character buffer and on the
screen using syntax highlighting, etc.
*/
static void remove_forward()
{
if( data->buff_pos >= data->buff_len )
return;
data->buff_pos++;
remove_backward();
}
/** /**
Insert the character into the command line buffer and print it to Insert the character into the command line buffer and print it to
the screen using syntax highlighting, etc. the screen using syntax highlighting, etc.
@ -753,8 +706,7 @@ static int insert_char( int c )
/* Syntax highlight */ /* Syntax highlight */
reader_super_highlight_me_plenty( data->color, reader_super_highlight_me_plenty( data->buff_pos-1,
data->buff_pos-1,
0 ); 0 );
repaint(); repaint();
@ -791,8 +743,7 @@ static int insert_str(wchar_t *str)
/* Syntax highlight */ /* Syntax highlight */
reader_super_highlight_me_plenty( data->color, reader_super_highlight_me_plenty( data->buff_pos-1,
data->buff_pos-1,
0 ); 0 );
/* repaint */ /* repaint */
@ -1103,8 +1054,8 @@ static void run_pager( wchar_t *prefix, int is_quoted, array_list_t *comp )
space. space.
- If the list contains multiple elements with a common prefix, write - If the list contains multiple elements with a common prefix, write
the prefix. the prefix.
- If the list contains multiple elements without - If the list contains multiple elements without.
a common prefix, call run_pager to display a list of completions a common prefix, call run_pager to display a list of completions. Depending on terminal size and the length of the list, run_pager may either show less than a screenfull and exit or use an interactive pager to allow the user to scroll through the completions.
\param comp the list of completion strings \param comp the list of completion strings
*/ */
@ -1199,13 +1150,6 @@ static int handle_completions( array_list_t *comp )
write(1, "\n", 1 ); write(1, "\n", 1 );
run_pager( prefix, is_quoted, comp ); run_pager( prefix, is_quoted, comp );
/*
Try to print a list of completions. First try with five
columns, then four, etc. completion_try_print always
succeeds with one column.
*/
} }
free( prefix ); free( prefix );
@ -1233,7 +1177,7 @@ static void reader_interactive_init()
shell_pgid = getpgrp (); shell_pgid = getpgrp ();
/* /*
This should enable job control on fish, even if our parent did This should enable job control on fish, even if our parent process did
not enable it for us. not enable it for us.
*/ */
@ -1265,9 +1209,6 @@ static void reader_interactive_init()
exit(1); exit(1);
} }
al_init( &prompt_list );
common_handle_winch(0); common_handle_winch(0);
if( tcsetattr(0,TCSANOW,&shell_modes)) /* set the new modes */ if( tcsetattr(0,TCSANOW,&shell_modes)) /* set the new modes */
@ -1291,9 +1232,6 @@ static void reader_interactive_init()
static void reader_interactive_destroy() static void reader_interactive_destroy()
{ {
kill_destroy(); kill_destroy();
al_foreach( &prompt_list, &free );
al_destroy( &prompt_list );
writestr( L"\n" ); writestr( L"\n" );
set_color( FISH_COLOR_RESET, FISH_COLOR_RESET ); set_color( FISH_COLOR_RESET, FISH_COLOR_RESET );
input_destroy(); input_destroy();
@ -1352,7 +1290,7 @@ static void handle_history( const wchar_t *new_str )
check_size(); check_size();
wcscpy( data->buff, new_str ); wcscpy( data->buff, new_str );
data->buff_pos=wcslen(data->buff); data->buff_pos=wcslen(data->buff);
reader_super_highlight_me_plenty( data->color, data->buff_pos, 0 ); reader_super_highlight_me_plenty( data->buff_pos, 0 );
repaint(); repaint();
} }
@ -1438,7 +1376,7 @@ static void handle_token_history( int forward, int reset )
} }
reader_replace_current_token( str ); reader_replace_current_token( str );
reader_super_highlight_me_plenty( data->color, data->buff_pos, 0 ); reader_super_highlight_me_plenty( data->buff_pos, 0 );
repaint(); repaint();
} }
else else
@ -1511,7 +1449,7 @@ static void handle_token_history( int forward, int reset )
if( str ) if( str )
{ {
reader_replace_current_token( str ); reader_replace_current_token( str );
reader_super_highlight_me_plenty( data->color, data->buff_pos, 0 ); reader_super_highlight_me_plenty( data->buff_pos, 0 );
repaint(); repaint();
al_push( &data->search_prev, str ); al_push( &data->search_prev, str );
data->search_pos = al_get_count( &data->search_prev )-1; data->search_pos = al_get_count( &data->search_prev )-1;
@ -1572,7 +1510,7 @@ static void move_word( int dir, int erase, int new )
{ {
end_buff_pos+=2*step; end_buff_pos+=2*step;
} }
/* /*
Remove all whitespace characters before finding a word Remove all whitespace characters before finding a word
*/ */
@ -1655,7 +1593,7 @@ static void move_word( int dir, int erase, int new )
*/ */
end_buff_pos = maxi( 0, mini( end_buff_pos, data->buff_len ) ); end_buff_pos = maxi( 0, mini( end_buff_pos, data->buff_len ) );
if( erase ) if( erase )
{ {
@ -1701,8 +1639,7 @@ void reader_set_buffer( wchar_t *b, int p )
data->buff_pos=l; data->buff_pos=l;
} }
reader_super_highlight_me_plenty( data->color, reader_super_highlight_me_plenty( data->buff_pos,
data->buff_pos,
0 ); 0 );
} }
@ -1796,12 +1733,13 @@ void reader_push( wchar_t *name )
check_size(); check_size();
data->buff[0]=data->search_buff[0]=0; data->buff[0]=data->search_buff[0]=0;
data->exec_prompt=1;
if( data->next == 0 ) if( data->next == 0 )
{ {
reader_interactive_init(); reader_interactive_init();
} }
exec_prompt();
reader_set_highlight_function( &highlight_universal ); reader_set_highlight_function( &highlight_universal );
reader_set_test_function( &default_test ); reader_set_test_function( &default_test );
reader_set_prompt( L"" ); reader_set_prompt( L"" );
@ -1852,7 +1790,7 @@ void reader_pop()
else else
{ {
history_set_mode( data->name ); history_set_mode( data->name );
data->exec_prompt=1; exec_prompt();
} }
} }
@ -1886,14 +1824,13 @@ void reader_set_test_function( int (*f)( wchar_t * ) )
highlighting. Lastly, clear the background color under the cursor highlighting. Lastly, clear the background color under the cursor
to avoid confusion. to avoid confusion.
\param buff the buffer to syntax highlight. This is always the same as data->buff
\param color the array of color values to insert the results into
\param match_highlight_pos the position to use for bracket matching. This need not be the same as the surrent cursor position \param match_highlight_pos the position to use for bracket matching. This need not be the same as the surrent cursor position
\param if non-null, any possibly errors in the buffer are further descibed by the strings inserted into the specified arraylist \param error if non-null, any possible errors in the buffer are further descibed by the strings inserted into the specified arraylist
*/ */
static void reader_super_highlight_me_plenty( int *color, int match_highlight_pos, array_list_t *error ) static void reader_super_highlight_me_plenty( int match_highlight_pos, array_list_t *error )
{ {
data->highlight_func( data->buff, color, match_highlight_pos, error ); data->highlight_func( data->buff, data->color, match_highlight_pos, error );
if( data->search_buff && wcslen(data->search_buff) ) if( data->search_buff && wcslen(data->search_buff) )
{ {
wchar_t * match = wcsstr( data->buff, data->search_buff ); wchar_t * match = wcsstr( data->buff, data->search_buff );
@ -1909,14 +1846,13 @@ static void reader_super_highlight_me_plenty( int *color, int match_highlight_po
/* /*
Do not overwrite previous highlighting color Do not overwrite previous highlighting color
*/ */
if( color[start+i]>>8 == 0 ) if( data->color[start+i]>>8 == 0 )
{ {
color[start+i] |= HIGHLIGHT_SEARCH_MATCH<<16; data->color[start+i] |= HIGHLIGHT_SEARCH_MATCH<<16;
} }
} }
} }
} }
} }
@ -2042,9 +1978,9 @@ wchar_t *reader_readline()
s_reset( &data->screen ); s_reset( &data->screen );
data->exec_prompt=1; exec_prompt();
reader_super_highlight_me_plenty( data->color, data->buff_pos, 0 ); reader_super_highlight_me_plenty( data->buff_pos, 0 );
repaint(); repaint();
tcgetattr(0,&old_modes); /* get the current terminal modes */ tcgetattr(0,&old_modes); /* get the current terminal modes */
@ -2057,7 +1993,6 @@ wchar_t *reader_readline()
while( !finished && !data->end_loop) while( !finished && !data->end_loop)
{ {
/* /*
Sometimes strange input sequences seem to generate a zero Sometimes strange input sequences seem to generate a zero
byte. I believe these simply mean a character was pressed byte. I believe these simply mean a character was pressed
@ -2139,7 +2074,7 @@ wchar_t *reader_readline()
case R_NULL: case R_NULL:
{ {
data->exec_prompt=1; exec_prompt();
s_reset( &data->screen ); s_reset( &data->screen );
repaint(); repaint();
break; break;
@ -2162,7 +2097,6 @@ wchar_t *reader_readline()
case R_COMPLETE: case R_COMPLETE:
{ {
// fwprintf( stderr, L"aaa\n" );
if( !data->complete_func ) if( !data->complete_func )
break; break;
@ -2223,9 +2157,7 @@ wchar_t *reader_readline()
if( len ) if( len )
{ {
reader_kill( begin, len, KILL_APPEND, last_char!=R_KILL_LINE ); reader_kill( begin, len, KILL_APPEND, last_char!=R_KILL_LINE );
} }
break; break;
@ -2260,8 +2192,7 @@ wchar_t *reader_readline()
wchar_t *end = &data->buff[data->buff_pos]; wchar_t *end = &data->buff[data->buff_pos];
wchar_t *begin = end; wchar_t *begin = end;
int len; int len;
//debug( 0, L"WOOOOOT" );
while( begin > data->buff && *begin != L'\n' ) while( begin > data->buff && *begin != L'\n' )
begin--; begin--;
@ -2281,9 +2212,7 @@ wchar_t *reader_readline()
if( len ) if( len )
{ {
reader_kill( begin, len, KILL_APPEND, last_char!=R_KILL_WHOLE_LINE );
reader_kill( begin, len, KILL_APPEND, last_char!=R_KILL_WHOLE_LINE );
} }
break; break;
@ -2346,7 +2275,15 @@ wchar_t *reader_readline()
/* delete forward*/ /* delete forward*/
case R_DELETE_CHAR: case R_DELETE_CHAR:
{ {
remove_forward(); /**
Remove the current character in the character buffer and on the
screen using syntax highlighting, etc.
*/
if( data->buff_pos < data->buff_len )
{
data->buff_pos++;
remove_backward();
}
break; break;
} }

9
screen.c
View File

@ -441,7 +441,14 @@ static int s_writeb( char c )
} }
/** /**
Move screen cursor to the specified position. Write the bytes needed to move screen cursor to the specified
position to the specified buffer. The actual_cursor field of the
specified screen_t will be updated.
\param s the screen to operate on
\param b the buffer to send the output escape codes to
\param new_x the new x position
\param new_y the new y position
*/ */
static void s_move( screen_t *s, buffer_t *b, int new_x, int new_y ) static void s_move( screen_t *s, buffer_t *b, int new_x, int new_y )
{ {