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-rw-r--r--src/parserstate.cc356
1 files changed, 356 insertions, 0 deletions
diff --git a/src/parserstate.cc b/src/parserstate.cc
new file mode 100644
index 0000000..e98d96a
--- /dev/null
+++ b/src/parserstate.cc
@@ -0,0 +1,356 @@
+#include "parserstate.h"
+#include "parserstatefamily.h"
+
+using namespace Parser;
+
+Transition State::anywhere_rule( wchar_t ch ) const
+{
+ if ( (ch == 0x18) || (ch == 0x1A)
+ || ((0x80 <= ch) && (ch <= 0x8F))
+ || ((0x91 <= ch) && (ch <= 0x97))
+ || (ch == 0x99) || (ch == 0x9A) ) {
+ return Transition( new Execute, &family->s_Ground );
+ } else if ( ch == 0x9C ) {
+ return Transition( &family->s_Ground );
+ } else if ( ch == 0x1B ) {
+ return Transition( &family->s_Escape );
+ } else if ( (ch == 0x98) || (ch == 0x9E) || (ch == 0x9F) ) {
+ return Transition( &family->s_SOS_PM_APC_String );
+ } else if ( ch == 0x90 ) {
+ return Transition( &family->s_DCS_Entry );
+ } else if ( ch == 0x9D ) {
+ return Transition( &family->s_OSC_String );
+ } else if ( ch == 0x9B ) {
+ return Transition( &family->s_CSI_Entry );
+ }
+
+ return Transition( NULL, NULL ); /* don't allocate an Ignore action */
+}
+
+Transition State::input( wchar_t ch ) const
+{
+ Transition ret = anywhere_rule( ch );
+ if ( !ret.next_state ) {
+ if ( ch >= 0xA0 ) {
+ ret = this->input_state_rule( 0x41 );
+ } else {
+ ret = this->input_state_rule( ch );
+ }
+ }
+
+ ret.action->char_present = true;
+ ret.action->ch = ch;
+ return ret;
+}
+
+static bool C0_prime( wchar_t ch )
+{
+ return ( (ch <= 0x17)
+ || (ch == 0x19)
+ || ( (0x1C <= ch) && (ch <= 0x1F) ) );
+}
+
+static bool GLGR ( wchar_t ch )
+{
+ return ( ( (0x20 <= ch) && (ch <= 0x7F) ) /* GL area */
+ || ( (0xA0 <= ch) && (ch <= 0xFF) ) ); /* GR area */
+}
+
+Transition Ground::input_state_rule( wchar_t ch ) const
+{
+ if ( C0_prime( ch ) ) {
+ return Transition( new Execute );
+ }
+
+ if ( GLGR( ch ) ) {
+ return Transition( new Print );
+ }
+
+ return Transition();
+}
+
+Action *Escape::enter( void ) const
+{
+ return new Clear;
+}
+
+Transition Escape::input_state_rule( wchar_t ch ) const
+{
+ if ( C0_prime( ch ) ) {
+ return Transition( new Execute );
+ }
+
+ if ( (0x20 <= ch) && (ch <= 0x2F) ) {
+ return Transition( new Collect, &family->s_Escape_Intermediate );
+ }
+
+ if ( ( (0x30 <= ch) && (ch <= 0x4F) )
+ || ( (0x51 <= ch) && (ch <= 0x57) )
+ || ( ch == 0x59 )
+ || ( ch == 0x5A )
+ || ( ch == 0x5C )
+ || ( (0x60 <= ch) && (ch <= 0x7E) ) ) {
+ return Transition( new Esc_Dispatch, &family->s_Ground );
+ }
+
+ if ( ch == 0x5B ) {
+ return Transition( &family->s_CSI_Entry );
+ }
+
+ if ( ch == 0x5D ) {
+ return Transition( &family->s_OSC_String );
+ }
+
+ if ( ch == 0x50 ) {
+ return Transition( &family->s_DCS_Entry );
+ }
+
+ if ( (ch == 0x58) || (ch == 0x5E) || (ch == 0x5F) ) {
+ return Transition( &family->s_SOS_PM_APC_String );
+ }
+
+ return Transition();
+}
+
+Transition Escape_Intermediate::input_state_rule( wchar_t ch ) const
+{
+ if ( C0_prime( ch ) ) {
+ return Transition( new Execute );
+ }
+
+ if ( (0x20 <= ch) && (ch <= 0x2F) ) {
+ return Transition( new Collect );
+ }
+
+ if ( (0x30 <= ch) && (ch <= 0x7E) ) {
+ return Transition( new Esc_Dispatch, &family->s_Ground );
+ }
+
+ return Transition();
+}
+
+Action *CSI_Entry::enter( void ) const
+{
+ return new Clear;
+}
+
+Transition CSI_Entry::input_state_rule( wchar_t ch ) const
+{
+ if ( C0_prime( ch ) ) {
+ return Transition( new Execute );
+ }
+
+ if ( (0x40 <= ch) && (ch <= 0x7E) ) {
+ return Transition( new CSI_Dispatch, &family->s_Ground );
+ }
+
+ if ( ( (0x30 <= ch) && (ch <= 0x39) )
+ || ( ch == 0x3B ) ) {
+ return Transition( new Param, &family->s_CSI_Param );
+ }
+
+ if ( (0x3C <= ch) && (ch <= 0x3F) ) {
+ return Transition( new Collect, &family->s_CSI_Param );
+ }
+
+ if ( ch == 0x3A ) {
+ return Transition( &family->s_CSI_Ignore );
+ }
+
+ if ( (0x20 <= ch) && (ch <= 0x2F) ) {
+ return Transition( new Collect, &family->s_CSI_Intermediate );
+ }
+
+ return Transition();
+}
+
+Transition CSI_Param::input_state_rule( wchar_t ch ) const
+{
+ if ( C0_prime( ch ) ) {
+ return Transition( new Execute );
+ }
+
+ if ( ( (0x30 <= ch) && (ch <= 0x39) ) || ( ch == 0x3B ) ) {
+ return Transition( new Param );
+ }
+
+ if ( ( ch == 0x3A ) || ( (0x3C <= ch) && (ch <= 0x3F) ) ) {
+ return Transition( &family->s_CSI_Ignore );
+ }
+
+ if ( (0x20 <= ch) && (ch <= 0x2F) ) {
+ return Transition( new Collect, &family->s_CSI_Intermediate );
+ }
+
+ if ( (0x40 <= ch) && (ch <= 0x7E) ) {
+ return Transition( new CSI_Dispatch, &family->s_Ground );
+ }
+
+ return Transition();
+}
+
+Transition CSI_Intermediate::input_state_rule( wchar_t ch ) const
+{
+ if ( C0_prime( ch ) ) {
+ return Transition( new Execute );
+ }
+
+ if ( (0x20 <= ch) && (ch <= 0x2F) ) {
+ return Transition( new Collect );
+ }
+
+ if ( (0x40 <= ch) && (ch <= 0x7E) ) {
+ return Transition( new CSI_Dispatch, &family->s_Ground );
+ }
+
+ if ( (0x30 <= ch) && (ch <= 0x3F) ) {
+ return Transition( &family->s_CSI_Ignore );
+ }
+
+ return Transition();
+}
+
+Transition CSI_Ignore::input_state_rule( wchar_t ch ) const
+{
+ if ( C0_prime( ch ) ) {
+ return Transition( new Execute );
+ }
+
+ if ( (0x40 <= ch) && (ch <= 0x7E) ) {
+ return Transition( &family->s_Ground );
+ }
+
+ return Transition();
+}
+
+Action *DCS_Entry::enter( void ) const
+{
+ return new Clear;
+}
+
+Transition DCS_Entry::input_state_rule( wchar_t ch ) const
+{
+ if ( (0x20 <= ch) && (ch <= 0x2F) ) {
+ return Transition( new Collect, &family->s_DCS_Intermediate );
+ }
+
+ if ( ch == 0x3A ) {
+ return Transition( &family->s_DCS_Ignore );
+ }
+
+ if ( ( (0x30 <= ch) && (ch <= 0x39) ) || ( ch == 0x3B ) ) {
+ return Transition( new Param, &family->s_DCS_Param );
+ }
+
+ if ( (0x3C <= ch) && (ch <= 0x3F) ) {
+ return Transition( new Collect, &family->s_DCS_Param );
+ }
+
+ if ( (0x40 <= ch) && (ch <= 0x7E) ) {
+ return Transition( &family->s_DCS_Passthrough );
+ }
+
+ return Transition();
+}
+
+Transition DCS_Param::input_state_rule( wchar_t ch ) const
+{
+ if ( ( (0x30 <= ch) && (ch <= 0x39) ) || ( ch == 0x3B ) ) {
+ return Transition( new Param );
+ }
+
+ if ( ( ch == 0x3A ) || ( (0x3C <= ch) && (ch <= 0x3F) ) ) {
+ return Transition( &family->s_DCS_Ignore );
+ }
+
+ if ( (0x20 <= ch) && (ch <= 0x2F) ) {
+ return Transition( new Collect, &family->s_DCS_Intermediate );
+ }
+
+ if ( (0x40 <= ch) && (ch <= 0x7E) ) {
+ return Transition( &family->s_DCS_Passthrough );
+ }
+
+ return Transition();
+}
+
+Transition DCS_Intermediate::input_state_rule( wchar_t ch ) const
+{
+ if ( (0x20 <= ch) && (ch <= 0x2F) ) {
+ return Transition( new Collect );
+ }
+
+ if ( (0x40 <= ch) && (ch <= 0x7E) ) {
+ return Transition( &family->s_DCS_Passthrough );
+ }
+
+ if ( (0x30 <= ch) && (ch <= 0x3F) ) {
+ return Transition( &family->s_DCS_Ignore );
+ }
+
+ return Transition();
+}
+
+Action *DCS_Passthrough::enter( void ) const
+{
+ return new Hook;
+}
+
+Action *DCS_Passthrough::exit( void ) const
+{
+ return new Unhook;
+}
+
+Transition DCS_Passthrough::input_state_rule( wchar_t ch ) const
+{
+ if ( C0_prime( ch ) || ( (0x20 <= ch) && (ch <= 0x7E) ) ) {
+ return Transition( new Put );
+ }
+
+ if ( ch == 0x9C ) {
+ return Transition( &family->s_Ground );
+ }
+
+ return Transition();
+}
+
+Transition DCS_Ignore::input_state_rule( wchar_t ch ) const
+{
+ if ( ch == 0x9C ) {
+ return Transition( &family->s_Ground );
+ }
+
+ return Transition();
+}
+
+Action *OSC_String::enter( void ) const
+{
+ return new OSC_Start;
+}
+
+Action *OSC_String::exit( void ) const
+{
+ return new OSC_End;
+}
+
+Transition OSC_String::input_state_rule( wchar_t ch ) const
+{
+ if ( (0x20 <= ch) && (ch <= 0x7F) ) {
+ return Transition( new OSC_Put );
+ }
+
+ if ( (ch == 0x9C) || (ch == 0x07) ) { /* 0x07 is xterm non-ANSI variant */
+ return Transition( &family->s_Ground );
+ }
+
+ return Transition();
+}
+
+Transition SOS_PM_APC_String::input_state_rule( wchar_t ch ) const
+{
+ if ( ch == 0x9C ) {
+ return Transition( &family->s_Ground );
+ }
+
+ return Transition();
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-08 23:06:50 +0000