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| author | Robin Haberkorn <robin.haberkorn@googlemail.com> | 2012-11-07 21:41:05 +0100 |
|---|---|---|
| committer | Robin Haberkorn <robin.haberkorn@googlemail.com> | 2012-11-07 21:41:05 +0100 |
| commit | 69419eceaca8e347016ccbe42326bcdc881355fc (patch) | |
| tree | 865c513afc65d4f32a1cb66589d4dc537b2e8a27 /parser.cpp | |
| parent | 8888a37426ff514d68c9b91e5f5185dedde9df4a (diff) | |
| download | sciteco-69419eceaca8e347016ccbe42326bcdc881355fc.tar.gz | |
undo stack enable/disable, parse-only mode, colon modifiers evaluation
Diffstat (limited to 'parser.cpp')
| -rw-r--r-- | parser.cpp | 70 |
1 files changed, 63 insertions, 7 deletions
@@ -9,12 +9,27 @@ gint macro_pc = 0; static struct { - StateStart start; + StateStart start; } states; static State *current_state = &states.start; -gboolean +static struct { + bool colon; + bool at; +} modifiers = {false, false}; + +static enum { + MODE_NORMAL = 0, + MODE_PARSE_ONLY +} mode = MODE_NORMAL; + +#define BEGIN_EXEC(STATE) G_STMT_START { \ + if (mode != MODE_NORMAL) \ + return STATE; \ +} G_STMT_END + +bool macro_execute(const gchar *macro) { while (macro[macro_pc]) { @@ -22,13 +37,13 @@ macro_execute(const gchar *macro) message_display(GTK_MESSAGE_ERROR, "Syntax error \"%c\"", macro[macro_pc]); - return FALSE; + return false; } macro_pc++; } - return TRUE; + return true; } State::State() @@ -37,7 +52,18 @@ State::State() transitions[i] = NULL; } -gboolean +bool +State::eval_colon(void) +{ + if (!modifiers.colon) + return false; + + undo.push_var<bool>(modifiers.colon); + modifiers.colon = false; + return true; +} + +bool State::input(gchar chr) { State *state = current_state; @@ -47,7 +73,7 @@ State::input(gchar chr) if (!next) /* Syntax error */ - return FALSE; + return false; if (next == state) break; @@ -61,7 +87,7 @@ State::input(gchar chr) current_state = state; } - return TRUE; + return true; } State * @@ -107,33 +133,41 @@ StateStart::custom(gchar chr) * arithmetics */ if (g_ascii_isdigit(chr)) { + BEGIN_EXEC(this); expressions.add_digit(chr); return this; } switch (g_ascii_toupper(chr)) { case '/': + BEGIN_EXEC(this); expressions.push_calc(Expressions::OP_DIV); break; case '*': + BEGIN_EXEC(this); expressions.push_calc(Expressions::OP_MUL); break; case '+': + BEGIN_EXEC(this); expressions.push_calc(Expressions::OP_ADD); break; case '-': + BEGIN_EXEC(this); if (!expressions.args()) expressions.set_num_sign(-expressions.num_sign); else expressions.push_calc(Expressions::OP_SUB); break; case '&': + BEGIN_EXEC(this); expressions.push_calc(Expressions::OP_AND); break; case '#': + BEGIN_EXEC(this); expressions.push_calc(Expressions::OP_OR); break; case '(': + BEGIN_EXEC(this); if (expressions.num_sign < 0) { expressions.push(-1); expressions.push_calc(Expressions::OP_MUL); @@ -141,22 +175,43 @@ StateStart::custom(gchar chr) expressions.push(Expressions::OP_BRACE); break; case ')': + BEGIN_EXEC(this); expressions.eval(true); break; case ',': + BEGIN_EXEC(this); expressions.eval(); expressions.push(Expressions::OP_NEW); break; + case '.': + BEGIN_EXEC(this); + expressions.eval(); + expressions.push(editor_msg(SCI_GETCURRENTPOS)); + break; + case 'Z': + BEGIN_EXEC(this); + expressions.eval(); + expressions.push(editor_msg(SCI_GETLENGTH)); + break; + case 'H': + BEGIN_EXEC(this); + expressions.eval(); + expressions.push(0); + expressions.push(editor_msg(SCI_GETLENGTH)); + break; /* * commands */ case 'C': + BEGIN_EXEC(this); move(expressions.pop_num_calc()); break; case 'R': + BEGIN_EXEC(this); move(-expressions.pop_num_calc()); break; case '=': + BEGIN_EXEC(this); message_display(GTK_MESSAGE_OTHER, "%" G_GINT64_FORMAT, expressions.pop_num_calc()); break; @@ -166,3 +221,4 @@ StateStart::custom(gchar chr) return this; } + |