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Refactor reader to work on selectable 'editable_line_t' so that most

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commands can operate on pager search field
This commit is contained in:
ridiculousfish 2014-01-26 14:47:15 -08:00
parent f58dff62c7
commit b9372944f5
2 changed files with 208 additions and 167 deletions
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370
reader.cpp
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@ -181,7 +181,13 @@ static volatile unsigned int s_generation_count;
/* This pthreads generation count is set when an autosuggestion background thread starts up, so it can easily check if the work it is doing is no longer useful. */
static pthread_key_t generation_count_key;
static void set_command_line_and_position(const wcstring &new_str, size_t pos);
static void set_command_line_and_position(editable_line_t *el, const wcstring &new_str, size_t pos);
void editable_line_t::insert_string(const wcstring &str)
{
this->text.insert(this->position, str);
this->position += str.size();
}
/**
A struct describing the state of the interactive reader. These
@ -254,15 +260,10 @@ public:
return command_line.size();
}
const wcstring &command_text() const
/* The line that is currently being edited. Typically the command line, but may be the search field */
editable_line_t *active_edit_line()
{
return command_line.get_text();
}
/** The current position of the cursor in buff. */
size_t buff_pos() const
{
return command_line.position;
return &command_line;
}
/** Do what we need to do whenever our command line changes */
@ -418,7 +419,7 @@ static struct termios terminal_mode_on_startup;
static struct termios terminal_mode_for_executing_programs;
static void reader_super_highlight_me_plenty(size_t pos);
static void reader_super_highlight_me_plenty(int highlight_pos_adjust = 0);
/**
Variable to keep track of forced exits - see \c reader_exit_forced();
@ -536,11 +537,12 @@ wcstring combine_command_and_autosuggestion(const wcstring &cmdline, const wcstr
static void reader_repaint()
{
editable_line_t *el = &data->command_line;
// Update the indentation
data->indents = parse_util_compute_indents(data->command_text());
data->indents = parse_util_compute_indents(el->text);
// Combine the command and autosuggestion into one string
wcstring full_line = combine_command_and_autosuggestion(data->command_text(), data->autosuggestion);
wcstring full_line = combine_command_and_autosuggestion(el->text, data->autosuggestion);
size_t len = full_line.size();
if (len < 1)
@ -564,7 +566,7 @@ static void reader_repaint()
data->command_length(),
&colors[0],
&indents[0],
data->buff_pos(),
el->position,
data->current_page_rendering);
data->repaint_needed = false;
@ -582,7 +584,8 @@ static void reader_repaint_without_autosuggestion()
/** Internal helper function for handling killing parts of text. */
static void reader_kill(size_t begin_idx, size_t length, int mode, int newv)
{
const wchar_t *begin = data->command_text().c_str() + begin_idx;
editable_line_t *el = data->active_edit_line();
const wchar_t *begin = el->text.c_str() + begin_idx;
if (newv)
{
data->kill_item = wcstring(begin, length);
@ -605,17 +608,17 @@ static void reader_kill(size_t begin_idx, size_t length, int mode, int newv)
kill_replace(old, data->kill_item);
}
if (data->buff_pos() > begin_idx)
if (el->position > begin_idx)
{
/* Move the buff position back by the number of characters we deleted, but don't go past buff_pos */
size_t backtrack = mini(data->command_line.position - begin_idx, length);
data->command_line.position -= backtrack;
size_t backtrack = mini(el->position - begin_idx, length);
el->position -= backtrack;
}
data->command_line.text.erase(begin_idx, length);
el->text.erase(begin_idx, length);
data->command_line_changed();
reader_super_highlight_me_plenty(data->buff_pos());
reader_super_highlight_me_plenty();
reader_repaint();
}
@ -743,18 +746,19 @@ bool reader_expand_abbreviation_in_command(const wcstring &cmdline, size_t curso
bool reader_data_t::expand_abbreviation_as_necessary(size_t cursor_backtrack)
{
bool result = false;
if (this->expand_abbreviations)
editable_line_t *el = data->active_edit_line();
if (this->expand_abbreviations && el == &data->command_line)
{
/* Try expanding abbreviations */
wcstring new_cmdline;
size_t cursor_pos = this->buff_pos() - mini(this->buff_pos(), cursor_backtrack);
if (reader_expand_abbreviation_in_command(this->command_text(), cursor_pos, &new_cmdline))
size_t cursor_pos = el->position - mini(el->position, cursor_backtrack);
if (reader_expand_abbreviation_in_command(el->text, cursor_pos, &new_cmdline))
{
/* We expanded an abbreviation! The cursor moves by the difference in the command line lengths. */
size_t new_buff_pos = this->buff_pos() + new_cmdline.size() - this->command_line.size();
size_t new_buff_pos = el->position + new_cmdline.size() - el->text.size();
this->command_line.text.swap(new_cmdline);
this->command_line.position = new_buff_pos;
el->text.swap(new_cmdline);
el->position = new_buff_pos;
data->command_line_changed();
result = true;
}
@ -1033,23 +1037,24 @@ void reader_react_to_color_change()
*/
static void remove_backward()
{
if (data->buff_pos() <= 0)
editable_line_t *el = data->active_edit_line();
if (el->position <= 0)
return;
/* Fake composed character sequences by continuing to delete until we delete a character of width at least 1. */
int width;
do
{
data->command_line.position -= 1;
width = fish_wcwidth(data->command_line.text.at(data->command_line.position));
data->command_line.text.erase(data->command_line.position, 1);
el->position -= 1;
width = fish_wcwidth(el->text.at(el->position));
el->text.erase(el->position, 1);
}
while (width == 0 && data->command_line.position > 0);
while (width == 0 && el->position > 0);
data->command_line_changed();
data->suppress_autosuggestion = true;
reader_super_highlight_me_plenty(data->buff_pos());
reader_super_highlight_me_plenty();
reader_repaint();
@ -1067,18 +1072,23 @@ static bool insert_string(const wcstring &str, bool should_expand_abbreviations
size_t len = str.size();
if (len == 0)
return false;
data->command_line.text.insert(data->buff_pos(), str);
data->command_line.position += len;
editable_line_t *el = data->active_edit_line();
el->insert_string(str);
data->command_line_changed();
data->suppress_autosuggestion = false;
if (el == &data->command_line)
{
data->suppress_autosuggestion = false;
if (should_expand_abbreviations)
data->expand_abbreviation_as_necessary(1);
if (should_expand_abbreviations)
data->expand_abbreviation_as_necessary(1);
/* Syntax highlight. Note we must have that buff_pos > 0 because we just added something nonzero to its length */
assert(data->buff_pos() > 0);
reader_super_highlight_me_plenty(data->buff_pos()-1);
/* Syntax highlight. Note we must have that buff_pos > 0 because we just added something nonzero to its length */
assert(el->position > 0);
reader_super_highlight_me_plenty(-1);
}
reader_repaint();
return true;
@ -1219,8 +1229,9 @@ wcstring completion_apply_to_command_line(const wcstring &val_str, complete_flag
*/
static void completion_insert(const wchar_t *val, complete_flags_t flags)
{
size_t cursor = data->buff_pos();
wcstring new_command_line = completion_apply_to_command_line(val, flags, data->command_text(), &cursor, false /* not append only */);
editable_line_t *el = data->active_edit_line();
size_t cursor = el->position;
wcstring new_command_line = completion_apply_to_command_line(val, flags, el->text, &cursor, false /* not append only */);
reader_set_buffer_maintaining_pager(new_command_line, cursor);
/* Since we just inserted a completion, don't immediately do a new autosuggestion */
@ -1287,37 +1298,39 @@ static void run_pager(const wcstring &prefix, int is_quoted, const std::vector<c
escaped_separator = escape(COMPLETE_SEP_STR, 1);
editable_line_t *el = &data->command_line;
for (size_t i=0; i< comp.size(); i++)
{
long base_len=-1;
const completion_t &el = comp.at(i);
const completion_t &cmpl = comp.at(i);
wcstring completion_text;
wcstring description_text;
// Note that an empty completion is perfectly sensible here, e.g. tab-completing 'foo' with a file called 'foo' and another called 'foobar'
if ((el.flags & COMPLETE_REPLACES_TOKEN) && match_type_shares_prefix(el.match.type))
if ((cmpl.flags & COMPLETE_REPLACES_TOKEN) && match_type_shares_prefix(cmpl.match.type))
{
// Compute base_len if we have not yet
if (base_len == -1)
{
const wchar_t *begin, *buff = data->command_text().c_str();
const wchar_t *begin, *buff = el->text.c_str();
parse_util_token_extent(buff, data->buff_pos(), &begin, 0, 0, 0);
base_len = data->buff_pos() - (begin-buff);
parse_util_token_extent(buff, el->position, &begin, 0, 0, 0);
base_len = el->position - (begin-buff);
}
completion_text = escape_string(el.completion.c_str() + base_len, ESCAPE_ALL | ESCAPE_NO_QUOTED);
completion_text = escape_string(cmpl.completion.c_str() + base_len, ESCAPE_ALL | ESCAPE_NO_QUOTED);
}
else
{
completion_text = escape_string(el.completion, ESCAPE_ALL | ESCAPE_NO_QUOTED);
completion_text = escape_string(cmpl.completion, ESCAPE_ALL | ESCAPE_NO_QUOTED);
}
if (! el.description.empty())
if (! cmpl.description.empty())
{
description_text = escape_string(el.description, true);
description_text = escape_string(cmpl.description, true);
}
/* It's possible (even common) to have an empty completion with no description. An example would be completing 'foo' with extant files 'foo' and 'foobar'. But fish_pager ignores blank lines. So if our completion text is empty, always include a description, even if it's empty.
@ -1472,17 +1485,19 @@ static int threaded_autosuggest(autosuggestion_context_t *ctx)
static bool can_autosuggest(void)
{
/* We autosuggest if suppress_autosuggestion is not set, if we're not doing a history search, and our command line contains a non-whitespace character. */
const editable_line_t *el = data->active_edit_line();
const wchar_t *whitespace = L" \t\r\n\v";
return ! data->suppress_autosuggestion &&
data->history_search.is_at_end() &&
data->command_text().find_first_not_of(whitespace) != wcstring::npos;
el == &data->command_line &&
el->text.find_first_not_of(whitespace) != wcstring::npos;
}
static void autosuggest_completed(autosuggestion_context_t *ctx, int result)
{
if (result &&
can_autosuggest() &&
ctx->search_string == data->command_text() &&
ctx->search_string == data->command_line.text &&
string_prefixes_string_case_insensitive(ctx->search_string, ctx->autosuggestion))
{
/* Autosuggestion is active and the search term has not changed, so we're good to go */
@ -1500,7 +1515,8 @@ static void update_autosuggestion(void)
data->autosuggestion.clear();
if (data->allow_autosuggestion && ! data->suppress_autosuggestion && ! data->command_line.empty() && data->history_search.is_at_end())
{
autosuggestion_context_t *ctx = new autosuggestion_context_t(data->history, data->command_text(), data->buff_pos());
const editable_line_t *el = data->active_edit_line();
autosuggestion_context_t *ctx = new autosuggestion_context_t(data->history, el->text, el->position);
iothread_perform(threaded_autosuggest, autosuggest_completed, ctx);
}
}
@ -1530,7 +1546,7 @@ static void accept_autosuggestion(bool full)
}
data->command_line.position = data->command_line.size();
data->command_line_changed();
reader_super_highlight_me_plenty(data->buff_pos());
reader_super_highlight_me_plenty();
reader_repaint();
}
}
@ -1586,8 +1602,9 @@ static void select_completion_in_direction(enum selection_direction_t dir, const
static void reader_flash()
{
struct timespec pollint;
for (size_t i=0; i<data->buff_pos(); i++)
editable_line_t *el = &data->command_line;
for (size_t i=0; i<el->position; i++)
{
data->colors.at(i) = highlight_spec_search_match<<16;
}
@ -1598,7 +1615,7 @@ static void reader_flash()
pollint.tv_nsec = 100 * 1000000;
nanosleep(&pollint, NULL);
reader_super_highlight_me_plenty(data->buff_pos());
reader_super_highlight_me_plenty();
reader_repaint();
}
@ -1720,10 +1737,11 @@ static bool handle_completions(const std::vector<completion_t> &comp)
{
bool done = false;
bool success = false;
const wchar_t *begin, *end, *buff = data->command_text().c_str();
const editable_line_t *el = &data->command_line;
const wchar_t *begin, *end, *buff = el->text.c_str();
parse_util_token_extent(buff, data->buff_pos(), &begin, 0, 0, 0);
end = buff+data->buff_pos();
parse_util_token_extent(buff, el->position, &begin, 0, 0, 0);
end = buff+el->position;
const wcstring tok(begin, end - begin);
@ -1857,10 +1875,10 @@ static bool handle_completions(const std::vector<completion_t> &comp)
/* We didn't get a common prefix. Print the list. */
size_t len, prefix_start = 0;
wcstring prefix;
parse_util_get_parameter_info(data->command_text(), data->buff_pos(), NULL, &prefix_start, NULL);
parse_util_get_parameter_info(el->text, el->position, NULL, &prefix_start, NULL);
assert(data->buff_pos() >= prefix_start);
len = data->buff_pos() - prefix_start;
assert(el->position >= prefix_start);
len = el->position - prefix_start;
if (match_type_requires_full_replacement(best_match_type))
{
@ -1869,17 +1887,17 @@ static bool handle_completions(const std::vector<completion_t> &comp)
}
else if (len <= PREFIX_MAX_LEN)
{
prefix.append(data->command_text(), prefix_start, len);
prefix.append(el->text, prefix_start, len);
}
else
{
// append just the end of the string
prefix = wcstring(&ellipsis_char, 1);
prefix.append(data->command_text(), prefix_start + len - PREFIX_MAX_LEN, PREFIX_MAX_LEN);
prefix.append(el->text, prefix_start + len - PREFIX_MAX_LEN, PREFIX_MAX_LEN);
}
wchar_t quote;
parse_util_get_parameter_info(data->command_text(), data->buff_pos(), &quote, NULL, NULL);
parse_util_get_parameter_info(el->text, el->position, &quote, NULL, NULL);
bool is_quoted = (quote != L'\0');
if (pager_use_inline())
@ -2113,7 +2131,7 @@ void reader_sanity_check()
/* Note: 'data' is non-null if we are interactive, except in the testing environment */
if (get_is_interactive() && data != NULL)
{
if (!(data->buff_pos() <= data->command_length()))
if (data->command_line.position > data->command_line.size())
sanity_lose();
if (data->colors.size() != data->command_length())
@ -2128,12 +2146,12 @@ void reader_sanity_check()
/**
Set the specified string as the current buffer.
*/
static void set_command_line_and_position(const wcstring &new_str, size_t pos)
static void set_command_line_and_position(editable_line_t *el, const wcstring &new_str, size_t pos)
{
data->command_line.text = new_str;
data->command_line.position = pos;
el->text = new_str;
el->position = pos;
data->command_line_changed();
reader_super_highlight_me_plenty(data->buff_pos());
reader_super_highlight_me_plenty();
reader_repaint();
}
@ -2144,8 +2162,9 @@ static void reader_replace_current_token(const wchar_t *new_token)
size_t new_pos;
/* Find current token */
const wchar_t *buff = data->command_text().c_str();
parse_util_token_extent(buff, data->buff_pos(), &begin, &end, 0, 0);
editable_line_t *el = data->active_edit_line();
const wchar_t *buff = el->text.c_str();
parse_util_token_extent(buff, el->position, &begin, &end, 0, 0);
if (!begin || !end)
return;
@ -2156,7 +2175,7 @@ static void reader_replace_current_token(const wchar_t *new_token)
new_buff.append(end);
new_pos = (begin-buff) + wcslen(new_token);
set_command_line_and_position(new_buff, new_pos);
set_command_line_and_position(el, new_buff, new_pos);
}
@ -2165,9 +2184,10 @@ static void reader_replace_current_token(const wchar_t *new_token)
*/
static void reset_token_history()
{
const editable_line_t *el = data->active_edit_line();
const wchar_t *begin, *end;
const wchar_t *buff = data->command_text().c_str();
parse_util_token_extent((wchar_t *)buff, data->buff_pos(), &begin, &end, 0, 0);
const wchar_t *buff = el->text.c_str();
parse_util_token_extent((wchar_t *)buff, el->position, &begin, &end, 0, 0);
data->search_buff.clear();
if (begin)
@ -2228,7 +2248,7 @@ static void handle_token_history(int forward, int reset)
}
reader_replace_current_token(str);
reader_super_highlight_me_plenty(data->buff_pos());
reader_super_highlight_me_plenty();
reader_repaint();
}
else
@ -2309,7 +2329,7 @@ static void handle_token_history(int forward, int reset)
if (str)
{
reader_replace_current_token(str);
reader_super_highlight_me_plenty(data->buff_pos());
reader_super_highlight_me_plenty();
reader_repaint();
data->search_pos = data->search_prev.size();
data->search_prev.push_back(str);
@ -2337,19 +2357,19 @@ enum move_word_dir_t
MOVE_DIR_RIGHT
};
static void move_word(bool move_right, bool erase, enum move_word_style_t style, bool newv)
static void move_word(editable_line_t *el, bool move_right, bool erase, enum move_word_style_t style, bool newv)
{
/* Return if we are already at the edge */
const size_t boundary = move_right ? data->command_length() : 0;
if (data->buff_pos() == boundary)
if (el->position == boundary)
return;
/* When moving left, a value of 1 means the character at index 0. */
move_word_state_machine_t state(style);
const wchar_t * const command_line = data->command_text().c_str();
const size_t start_buff_pos = data->buff_pos();
const wchar_t * const command_line = el->text.c_str();
const size_t start_buff_pos = el->position;
size_t buff_pos = data->buff_pos();
size_t buff_pos = el->position;
while (buff_pos != boundary)
{
size_t idx = (move_right ? buff_pos : buff_pos - 1);
@ -2389,7 +2409,7 @@ static void move_word(bool move_right, bool erase, enum move_word_style_t style,
const wchar_t *reader_get_buffer(void)
{
ASSERT_IS_MAIN_THREAD();
return data ? data->command_text().c_str():NULL;
return data ? data->command_line.text.c_str() : NULL;
}
history_t *reader_get_history(void)
@ -2417,7 +2437,7 @@ static void reader_set_buffer_maintaining_pager(const wcstring &b, size_t pos)
data->search_buff.clear();
data->history_search.go_to_end();
reader_super_highlight_me_plenty(data->buff_pos());
reader_super_highlight_me_plenty();
reader_repaint_needed();
}
@ -2437,7 +2457,7 @@ size_t reader_get_cursor_pos()
if (!data)
return (size_t)(-1);
return data->buff_pos();
return data->command_line.position;
}
#define ENV_CMD_DURATION L"CMD_DURATION"
@ -2720,8 +2740,9 @@ static void highlight_search(void)
{
if (! data->search_buff.empty() && ! data->history_search.is_at_end())
{
const editable_line_t *el = &data->command_line;
const wcstring &needle = data->search_buff;
size_t match_pos = data->command_text().find(needle);
size_t match_pos = el->text.find(needle);
if (match_pos != wcstring::npos)
{
size_t end = match_pos + needle.size();
@ -2765,19 +2786,23 @@ static int threaded_highlight(background_highlight_context_t *ctx)
to avoid repaint issues on terminals where e.g. syntax highlighting
maykes characters under the sursor unreadable.
\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_adjust the adjustment to the position to use for bracket matching. This is added to the current cursor position and may be negative.
\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(size_t match_highlight_pos)
static void reader_super_highlight_me_plenty(int match_highlight_pos_adjust)
{
const editable_line_t *el = &data->command_line;
long match_highlight_pos = (long)el->position + match_highlight_pos_adjust;
assert(match_highlight_pos >= 0);
reader_sanity_check();
background_highlight_context_t *ctx = new background_highlight_context_t(data->command_text(), match_highlight_pos, data->highlight_function);
background_highlight_context_t *ctx = new background_highlight_context_t(el->text, match_highlight_pos, data->highlight_function);
iothread_perform(threaded_highlight, highlight_complete, ctx);
highlight_search();
/* Here's a hack. Check to see if our autosuggestion still applies; if so, don't recompute it. Since the autosuggestion computation is asynchronous, this avoids "flashing" as you type into the autosuggestion. */
const wcstring &cmd = data->command_text(), &suggest = data->autosuggestion;
const wcstring &cmd = el->text, &suggest = data->autosuggestion;
if (can_autosuggest() && ! suggest.empty() && string_prefixes_string_case_insensitive(cmd, suggest))
{
/* The autosuggestion is still reasonable, so do nothing */
@ -3014,7 +3039,7 @@ const wchar_t *reader_readline(void)
exec_prompt();
reader_super_highlight_me_plenty(data->buff_pos());
reader_super_highlight_me_plenty();
s_reset(&data->screen, screen_reset_abandon_line);
reader_repaint();
@ -3110,17 +3135,16 @@ const wchar_t *reader_readline(void)
//fprintf(stderr, "\n\nchar: %ls\n\n", describe_char(c).c_str());
const wchar_t * const buff = data->command_text().c_str();
switch (c)
{
/* go to beginning of line*/
case R_BEGINNING_OF_LINE:
{
while ((data->buff_pos()>0) &&
(buff[data->buff_pos()-1] != L'\n'))
editable_line_t *el = data->active_edit_line();
while (el->position > 0 && el->text.at(el->position - 1) != L'\n')
{
data->command_line.position--;
el->position--;
}
reader_repaint_needed();
@ -3129,12 +3153,14 @@ const wchar_t *reader_readline(void)
case R_END_OF_LINE:
{
if (data->buff_pos() < data->command_length())
editable_line_t *el = data->active_edit_line();
if (el->position < el->size())
{
while (buff[data->buff_pos()] &&
buff[data->buff_pos()] != L'\n')
const wchar_t *buff = el->text.c_str();
while (buff[el->position] &&
buff[el->position] != L'\n')
{
data->command_line.position++;
el->position++;
}
}
else
@ -3195,7 +3221,9 @@ const wchar_t *reader_readline(void)
if (!data->complete_func)
break;
/* Use the command line only; it doesn't make sense to complete in any other line */
editable_line_t *el = &data->command_line;
if (is_navigating_pager_contents() || (! comp_empty && last_char == R_COMPLETE))
{
/* The user typed R_COMPLETE more than once in a row. Cycle through our available completions. */
@ -3206,24 +3234,24 @@ const wchar_t *reader_readline(void)
/* Either the user hit tab only once, or we had no visible completion list. */
/* Remove a trailing backslash. This may trigger an extra repaint, but this is rare. */
if (is_backslashed(data->command_text(), data->buff_pos()))
if (is_backslashed(el->text, el->position))
{
remove_backward();
}
/* Get the string; we have to do this after removing any trailing backslash */
const wchar_t * const buff = data->command_text().c_str();
const wchar_t * const buff = el->text.c_str();
/* Clear the completion list */
comp.clear();
/* Figure out the extent of the command substitution surrounding the cursor. This is because we only look at the current command substitution to form completions - stuff happening outside of it is not interesting. */
const wchar_t *cmdsub_begin, *cmdsub_end;
parse_util_cmdsubst_extent(buff, data->buff_pos(), &cmdsub_begin, &cmdsub_end);
parse_util_cmdsubst_extent(buff, el->position, &cmdsub_begin, &cmdsub_end);
/* Figure out the extent of the token within the command substitution. Note we pass cmdsub_begin here, not buff */
const wchar_t *token_begin, *token_end;
parse_util_token_extent(cmdsub_begin, data->buff_pos() - (cmdsub_begin-buff), &token_begin, &token_end, 0, 0);
parse_util_token_extent(cmdsub_begin, el->position - (cmdsub_begin-buff), &token_begin, &token_end, 0, 0);
/* Hack: the token may extend past the end of the command substitution, e.g. in (echo foo) the last token is 'foo)'. Don't let that happen. */
if (token_end > cmdsub_end) token_end = cmdsub_end;
@ -3232,9 +3260,9 @@ const wchar_t *reader_readline(void)
size_t end_of_token_offset = token_end - buff;
/* Move the cursor to the end */
if (data->buff_pos() != end_of_token_offset)
if (el->position != end_of_token_offset)
{
data->command_line.position = end_of_token_offset;
el->position = end_of_token_offset;
reader_repaint();
}
@ -3249,8 +3277,8 @@ const wchar_t *reader_readline(void)
prioritize_completions(comp);
/* Record our cycle_command_line */
cycle_command_line = data->command_text();
cycle_cursor_pos = data->buff_pos();
cycle_command_line = el->text;
cycle_cursor_pos = el->position;
comp_empty = handle_completions(comp);
@ -3264,8 +3292,9 @@ const wchar_t *reader_readline(void)
/* kill */
case R_KILL_LINE:
{
const wchar_t *buff = data->command_text().c_str();
const wchar_t *begin = &buff[data->buff_pos()];
const editable_line_t *el = data->active_edit_line();
const wchar_t *buff = el->text.c_str();
const wchar_t *begin = &buff[el->position];
const wchar_t *end = begin;
while (*end && *end != L'\n')
@ -3285,10 +3314,11 @@ const wchar_t *reader_readline(void)
case R_BACKWARD_KILL_LINE:
{
if (data->buff_pos() > 0)
const editable_line_t *el = data->active_edit_line();
if (el->position > 0)
{
const wchar_t *buff = data->command_text().c_str();
const wchar_t *end = &buff[data->buff_pos()];
const wchar_t *buff = el->text.c_str();
const wchar_t *end = &buff[el->position];
const wchar_t *begin = end;
/* Make sure we delete at least one character (see #580) */
@ -3314,8 +3344,9 @@ const wchar_t *reader_readline(void)
case R_KILL_WHOLE_LINE:
{
const wchar_t *buff = data->command_text().c_str();
const wchar_t *end = &buff[data->buff_pos()];
const editable_line_t *el = data->active_edit_line();
const wchar_t *buff = el->text.c_str();
const wchar_t *end = &buff[el->position];
const wchar_t *begin = end;
size_t len;
@ -3386,7 +3417,7 @@ const wchar_t *reader_readline(void)
reader_replace_current_token(data->search_buff.c_str());
}
data->search_buff.clear();
reader_super_highlight_me_plenty(data->buff_pos());
reader_super_highlight_me_plenty();
reader_repaint_needed();
}
@ -3407,9 +3438,10 @@ const wchar_t *reader_readline(void)
Remove the current character in the character buffer and on the
screen using syntax highlighting, etc.
*/
if (data->buff_pos() < data->command_length())
editable_line_t *el = data->active_edit_line();
if (el->position < el->size())
{
data->command_line.position++;
el->position++;
remove_backward();
}
break;
@ -3424,11 +3456,14 @@ const wchar_t *reader_readline(void)
{
/* Delete any autosuggestion */
data->autosuggestion.clear();
/* We only execute the command line */
const editable_line_t *el = &data->command_line;
/* Allow backslash-escaped newlines, but only if the following character is whitespace, or we're at the end of the text (see issue #163) */
if (is_backslashed(data->command_text(), data->buff_pos()))
if (is_backslashed(el->text, el->position))
{
if (data->buff_pos() >= data->command_length() || iswspace(data->command_text().at(data->buff_pos())))
if (el->position >= el->size() || iswspace(el->text.at(el->position)))
{
insert_char('\n');
break;
@ -3436,7 +3471,7 @@ const wchar_t *reader_readline(void)
}
/* See if this command is valid */
int command_test_result = data->test_func(data->command_text().c_str());
int command_test_result = data->test_func(el->text.c_str());
if (command_test_result == 0 || command_test_result == PARSER_TEST_INCOMPLETE)
{
/* This command is valid, but an abbreviation may make it invalid. If so, we will have to test again. */
@ -3444,8 +3479,8 @@ const wchar_t *reader_readline(void)
if (abbreviation_expanded)
{
/* It's our reponsibility to rehighlight and repaint. But everything we do below triggers a repaint. */
reader_super_highlight_me_plenty(data->buff_pos());
command_test_result = data->test_func(data->command_text().c_str());
reader_super_highlight_me_plenty();
command_test_result = data->test_func(el->text.c_str());
}
}
@ -3455,9 +3490,10 @@ const wchar_t *reader_readline(void)
case 0:
{
/* Finished command, execute it. Don't add items that start with a leading space. */
if (data->history != NULL && ! data->command_line.empty() && data->command_text().at(0) != L' ')
const editable_line_t *el = &data->command_line;
if (data->history != NULL && ! el->empty() && el->text.at(0) != L' ')
{
data->history->add_with_file_detection(data->command_text());
data->history->add_with_file_detection(el->text);
}
finished=1;
data->command_line.position = data->command_length();
@ -3498,7 +3534,6 @@ const wchar_t *reader_readline(void)
case R_HISTORY_TOKEN_SEARCH_FORWARD:
{
int reset = 0;
if (data->search_mode == NO_SEARCH)
{
reset = 1;
@ -3512,7 +3547,8 @@ const wchar_t *reader_readline(void)
data->search_mode = TOKEN_SEARCH;
}
data->search_buff.append(data->command_text());
const editable_line_t *el = &data->command_line;
data->search_buff.append(el->text);
data->history_search = history_search_t(*data->history, data->search_buff, HISTORY_SEARCH_TYPE_CONTAINS);
/* Skip the autosuggestion as history unless it was truncated */
@ -3551,7 +3587,7 @@ const wchar_t *reader_readline(void)
{
new_text = data->history_search.current_string();
}
set_command_line_and_position(new_text, new_text.size());
set_command_line_and_position(&data->command_line, new_text, new_text.size());
break;
}
@ -3616,30 +3652,31 @@ const wchar_t *reader_readline(void)
{
move_word_style_t style = (c == R_BACKWARD_KILL_PATH_COMPONENT ? move_word_style_path_components : move_word_style_punctuation);
bool newv = (last_char != R_BACKWARD_KILL_WORD && last_char != R_BACKWARD_KILL_PATH_COMPONENT);
move_word(MOVE_DIR_LEFT, true /* erase */, style, newv);
move_word(data->active_edit_line(), MOVE_DIR_LEFT, true /* erase */, style, newv);
break;
}
/* kill one word right */
case R_KILL_WORD:
{
move_word(MOVE_DIR_RIGHT, true /* erase */, move_word_style_punctuation, last_char!=R_KILL_WORD);
move_word(data->active_edit_line(), MOVE_DIR_RIGHT, true /* erase */, move_word_style_punctuation, last_char!=R_KILL_WORD);
break;
}
/* move one word left*/
case R_BACKWARD_WORD:
{
move_word(MOVE_DIR_LEFT, false /* do not erase */, move_word_style_punctuation, false);
move_word(data->active_edit_line(), MOVE_DIR_LEFT, false /* do not erase */, move_word_style_punctuation, false);
break;
}
/* move one word right*/
case R_FORWARD_WORD:
{
if (data->buff_pos() < data->command_length())
editable_line_t *el = data->active_edit_line();
if (el->position < el->size())
{
move_word(MOVE_DIR_RIGHT, false /* do not erase */, move_word_style_punctuation, false);
move_word(el, MOVE_DIR_RIGHT, false /* do not erase */, move_word_style_punctuation, false);
}
else
{
@ -3650,12 +3687,13 @@ const wchar_t *reader_readline(void)
case R_BEGINNING_OF_HISTORY:
{
data->history_search = history_search_t(*data->history, data->command_text(), HISTORY_SEARCH_TYPE_PREFIX);
const editable_line_t *el = &data->command_line;
data->history_search = history_search_t(*data->history, el->text, HISTORY_SEARCH_TYPE_PREFIX);
data->history_search.go_to_beginning();
if (! data->history_search.is_at_end())
{
wcstring new_text = data->history_search.current_string();
set_command_line_and_position(new_text, new_text.size());
set_command_line_and_position(&data->command_line, new_text, new_text.size());
}
break;
@ -3701,7 +3739,8 @@ const wchar_t *reader_readline(void)
else
{
/* Not navigating the pager contents */
int line_old = parse_util_get_line_from_offset(data->command_text(), data->buff_pos());
editable_line_t *el = data->active_edit_line();
int line_old = parse_util_get_line_from_offset(el->text, el->position);
int line_new;
if (c == R_UP_LINE)
@ -3709,7 +3748,7 @@ const wchar_t *reader_readline(void)
else
line_new = line_old+1;
int line_count = parse_util_lineno(data->command_text().c_str(), data->command_length())-1;
int line_count = parse_util_lineno(el->text.c_str(), el->size())-1;
if (line_new >= 0 && line_new <= line_count)
{
@ -3721,17 +3760,17 @@ const wchar_t *reader_readline(void)
size_t line_offset_old;
size_t total_offset_new;
base_pos_new = parse_util_get_offset_from_line(data->command_text(), line_new);
base_pos_new = parse_util_get_offset_from_line(el->text, line_new);
base_pos_old = parse_util_get_offset_from_line(data->command_text(), line_old);
base_pos_old = parse_util_get_offset_from_line(el->text, line_old);
assert(base_pos_new != (size_t)(-1) && base_pos_old != (size_t)(-1));
indent_old = data->indents.at(base_pos_old);
indent_new = data->indents.at(base_pos_new);
line_offset_old = data->buff_pos() - parse_util_get_offset_from_line(data->command_text(), line_old);
total_offset_new = parse_util_get_offset(data->command_text(), line_new, line_offset_old - 4*(indent_new-indent_old));
data->command_line.position = total_offset_new;
line_offset_old = el->position - parse_util_get_offset_from_line(el->text, line_old);
total_offset_new = parse_util_get_offset(el->text, line_new, line_offset_old - 4*(indent_new-indent_old));
el->position = total_offset_new;
reader_repaint_needed();
}
}
@ -3755,41 +3794,43 @@ const wchar_t *reader_readline(void)
case R_TRANSPOSE_CHARS:
{
if (data->command_length() < 2)
editable_line_t *el = data->active_edit_line();
if (el->size() < 2)
{
break;
}
/* If the cursor is at the end, transpose the last two characters of the line */
if (data->command_line.position == data->command_length())
if (el->position == el->size())
{
data->command_line.position--;
el->position--;
}
/*
Drag the character before the cursor forward over the character at the cursor, moving
the cursor forward as well.
*/
if (data->command_line.position > 0)
if (el->position > 0)
{
wcstring local_cmd = data->command_text();
std::swap(local_cmd.at(data->buff_pos()), local_cmd.at(data->buff_pos()-1));
set_command_line_and_position(local_cmd, data->buff_pos() + 1);
wcstring local_cmd = el->text;
std::swap(local_cmd.at(el->position), local_cmd.at(el->position-1));
set_command_line_and_position(el, local_cmd, el->position + 1);
}
break;
}
case R_TRANSPOSE_WORDS:
{
size_t len = data->command_length();
const wchar_t *buff = data->command_text().c_str();
editable_line_t *el = data->active_edit_line();
size_t len = el->size();
const wchar_t *buff = el->text.c_str();
const wchar_t *tok_begin, *tok_end, *prev_begin, *prev_end;
/* If we are not in a token, look for one ahead */
while (data->buff_pos() != len && !iswalnum(buff[data->buff_pos()]))
data->command_line.position++;
while (el->position != len && !iswalnum(buff[el->position]))
el->position++;
parse_util_token_extent(buff, data->buff_pos(), &tok_begin, &tok_end, &prev_begin, &prev_end);
parse_util_token_extent(buff, el->position, &tok_begin, &tok_end, &prev_begin, &prev_end);
/* In case we didn't find a token at or after the cursor... */
if (tok_begin == &buff[len])
@ -3814,7 +3855,7 @@ const wchar_t *reader_readline(void)
new_buff.append(prev);
new_buff.append(trail);
/* Put cursor right after the second token */
set_command_line_and_position(new_buff, tok_end - buff);
set_command_line_and_position(el, new_buff, tok_end - buff);
}
break;
}
@ -3823,15 +3864,16 @@ const wchar_t *reader_readline(void)
case R_DOWNCASE_WORD:
case R_CAPITALIZE_WORD:
{
editable_line_t *el = data->active_edit_line();
// For capitalize_word, whether we've capitalized a character so far
bool capitalized_first = false;
// We apply the operation from the current location to the end of the word
size_t pos = data->buff_pos();
move_word(MOVE_DIR_RIGHT, false, move_word_style_punctuation, false);
for (; pos < data->buff_pos(); pos++)
size_t pos = el->position;
move_word(el, MOVE_DIR_RIGHT, false, move_word_style_punctuation, false);
for (; pos < el->position; pos++)
{
wchar_t chr = data->command_text().at(pos);
wchar_t chr = el->text.at(pos);
// We always change the case; this decides whether we go uppercase (true) or lowercase (false)
bool make_uppercase;
@ -3850,7 +3892,7 @@ const wchar_t *reader_readline(void)
capitalized_first = capitalized_first || make_uppercase;
}
data->command_line_changed();
reader_super_highlight_me_plenty(data->buff_pos());
reader_super_highlight_me_plenty();
reader_repaint_needed();
break;
}
@ -3925,7 +3967,7 @@ const wchar_t *reader_readline(void)
set_color(rgb_color_t::reset(), rgb_color_t::reset());
}
return finished ? data->command_text().c_str() : NULL;
return finished ? data->command_line.text.c_str() : NULL;
}
int reader_search_mode()

5
reader.h
View file

@ -53,9 +53,8 @@ class editable_line_t
{
}
/* Internal */
void kill(size_t begin_idx, size_t length, int mode, int newv);
/* Inserts the string at the cursor position */
void insert_string(const wcstring &str);
};
/**