diff --git a/runtime/doc/syntax.txt b/runtime/doc/syntax.txt
index 2fb320e..9b20478 100644
--- a/runtime/doc/syntax.txt
+++ b/runtime/doc/syntax.txt
@@ -1062,6 +1062,7 @@
 *c_no_cformat*		don't highlight %-formats in strings
 *c_no_c99*		don't highlight C99 standard items
 *c_no_c11*		don't highlight C11 standard items
+*c_no_c23*		don't highlight C23 standard items
 *c_no_bsd*		don't highlight BSD specific types
 *c_functions*		highlight function calls and definitions
 *c_function_pointers*	highlight function pointers definitions
diff --git a/runtime/doc/tags b/runtime/doc/tags
index 6d1bf96..0e4c14c 100644
--- a/runtime/doc/tags
+++ b/runtime/doc/tags
@@ -6360,6 +6360,7 @@
 c_no_bracket_error	syntax.txt	/*c_no_bracket_error*
 c_no_bsd	syntax.txt	/*c_no_bsd*
 c_no_c11	syntax.txt	/*c_no_c11*
+c_no_c23	syntax.txt	/*c_no_c23*
 c_no_c99	syntax.txt	/*c_no_c99*
 c_no_cformat	syntax.txt	/*c_no_cformat*
 c_no_curly_error	syntax.txt	/*c_no_curly_error*
diff --git a/runtime/ftplugin/c.vim b/runtime/ftplugin/c.vim
index 378d580..915861b 100644
--- a/runtime/ftplugin/c.vim
+++ b/runtime/ftplugin/c.vim
@@ -44,7 +44,7 @@
 " When the matchit plugin is loaded, this makes the % command skip parens and
 " braces in comments properly.
 if !exists("b:match_words")
-  let b:match_words = '^\s*#\s*if\(\|def\|ndef\)\>:^\s*#\s*elif\>:^\s*#\s*else\>:^\s*#\s*endif\>'
+  let b:match_words = '^\s*#\s*if\%(\|def\|ndef\)\>:^\s*#\s*elif\%(\|def\|ndef\)\>:^\s*#\s*else\>:^\s*#\s*endif\>'
   let b:match_skip = 's:comment\|string\|character\|special'
   let b:undo_ftplugin ..= " | unlet! b:match_skip b:match_words"
 endif
diff --git a/runtime/syntax/c.vim b/runtime/syntax/c.vim
index 30db943..eb56239 100644
--- a/runtime/syntax/c.vim
+++ b/runtime/syntax/c.vim
@@ -1,7 +1,7 @@
 " Vim syntax file
-" Language:	C
-" Maintainer:	The Vim Project <https://github.com/vim/vim>
-" Last Change:	2023 Aug 10
+" Language:		C
+" Maintainer:		The Vim Project <https://github.com/vim/vim>
+" Last Change:		2025 Jan 15
 " Former Maintainer:	Bram Moolenaar <Bram@vim.org>
 
 " Quit when a (custom) syntax file was already loaded
@@ -111,6 +111,20 @@
   syn match	cSpecialCharacter display "[Uu]'\\x\x\+'"
 endif
 
+if (s:ft ==# "c" && !exists("c_no_c23")) || (s:in_cpp_family && !exists("cpp_no_cpp17"))
+  syn match	cCharacter	"u8'[^\\]'"
+  syn match	cCharacter	"u8'[^']*'" contains=cSpecial
+  if exists("c_gnu")
+    syn match	cSpecialError	"u8'\\[^'\"?\\abefnrtv]'"
+    syn match	cSpecialCharacter "u8'\\['\"?\\abefnrtv]'"
+  else
+    syn match	cSpecialError	"u8'\\[^'\"?\\abfnrtv]'"
+    syn match	cSpecialCharacter "u8'\\['\"?\\abfnrtv]'"
+  endif
+  syn match	cSpecialCharacter display "u8'\\\o\{1,3}'"
+  syn match	cSpecialCharacter display "u8'\\x\x\+'"
+endif
+
 "when wanted, highlight trailing white space
 if exists("c_space_errors")
   if !exists("c_no_trail_space_error")
@@ -191,12 +205,25 @@
 syn match	cNumbers	display transparent "\<\d\|\.\d" contains=cNumber,cFloat,cOctalError,cOctal
 " Same, but without octal error (for comments)
 syn match	cNumbersCom	display contained transparent "\<\d\|\.\d" contains=cNumber,cFloat,cOctal
-syn match	cNumber		display contained "\d\+\%(u\=l\{0,2}\|ll\=u\)\>"
-"hex number
-syn match	cNumber		display contained "0x\x\+\%(u\=l\{0,2}\|ll\=u\)\>"
-" Flag the first zero of an octal number as something special
-syn match	cOctal		display contained "0\o\+\%(u\=l\{0,2}\|ll\=u\)\>" contains=cOctalZero
-syn match	cOctalZero	display contained "\<0"
+
+" cpp.vim handles these
+if !exists("c_no_c23") && !s:in_cpp_family
+  syn match	cNumber		display contained "\d\%('\=\d\+\)*\%(u\=l\{0,2}\|ll\=u\|u\=wb\|wbu\=\)\>"
+  "hex number
+  syn match	cNumber		display contained "0x\x\%('\=\x\+\)*\%(u\=l\{0,2}\|ll\=u\|u\=wb\|wbu\=\)\>"
+  " Flag the first zero of an octal number as something special
+  syn match	cOctal		display contained "0\o\%('\=\o\+\)*\%(u\=l\{0,2}\|ll\=u\|u\=wb\|wbu\=\)\>" contains=cOctalZero
+  "binary number
+  syn match	cNumber		display contained "0b[01]\%('\=[01]\+\)*\%(u\=l\{0,2}\|ll\=u\|u\=wb\|wbu\=\)\>"
+else
+  syn match	cNumber		display contained "\d\+\%(u\=l\{0,2}\|ll\=u\)\>"
+  "hex number
+  syn match	cNumber		display contained "0x\x\+\%(u\=l\{0,2}\|ll\=u\)\>"
+  " Flag the first zero of an octal number as something special
+  syn match	cOctal		display contained "0\o\+\%(u\=l\{0,2}\|ll\=u\)\>" contains=cOctalZero
+  syn match	cOctalZero	display contained "\<0"
+endif
+
 "floating point number, with dot, optional exponent
 syn match	cFloat		display contained "\d\+\.\d*\%(e[-+]\=\d\+\)\=[fl]\="
 "floating point number, starting with a dot, optional exponent
@@ -277,6 +304,13 @@
   syn keyword	cType		intptr_t uintptr_t
   syn keyword	cType		intmax_t uintmax_t
 endif
+if !exists("c_no_c23") && !s:in_cpp_family
+  syn keyword	cOperator	typeof typeof_unqual
+  syn keyword	cType           _BitInt _Decimal32 _Decimal64 _Decimal128
+endif
+if (s:ft ==# "c" && !exists("c_no_c23")) || (s:in_cpp_family && !exists("cpp_no_cpp11"))
+  syn keyword	cType           nullptr_t
+endif
 
 syn keyword	cTypedef	typedef
 syn keyword	cStructure	struct union enum
@@ -312,10 +346,15 @@
   syn keyword	cType		atomic_intmax_t atomic_uintmax_t
 endif
 
+if (s:ft ==# "c" && !exists("c_no_c23")) || (s:in_cpp_family && !exists("cpp_no_cpp20"))
+  syn keyword   cType		char8_t
+endif
+
 if !exists("c_no_ansi") || exists("c_ansi_constants") || exists("c_gnu")
   if exists("c_gnu")
     syn keyword cConstant __GNUC__ __FUNCTION__ __PRETTY_FUNCTION__ __func__
   endif
+  " TODO: __STDC_HOSTED__ is C99 and C++11
   syn keyword cConstant __LINE__ __FILE__ __DATE__ __TIME__ __STDC__ __STDC_VERSION__ __STDC_HOSTED__
   syn keyword cConstant CHAR_BIT MB_LEN_MAX MB_CUR_MAX
   syn keyword cConstant UCHAR_MAX UINT_MAX ULONG_MAX USHRT_MAX
@@ -324,6 +363,8 @@
   syn keyword cConstant SCHAR_MIN SINT_MIN SLONG_MIN SSHRT_MIN
   syn keyword cConstant SCHAR_MAX SINT_MAX SLONG_MAX SSHRT_MAX
   if !exists("c_no_c99")
+    syn keyword cConstant __STDC_ISO_10646__ __STDC_IEC_559_COMPLEX__
+    syn keyword cConstant __STDC_MB_MIGHT_NEQ_WC__
     syn keyword cConstant __func__ __VA_ARGS__
     syn keyword cConstant LLONG_MIN LLONG_MAX ULLONG_MAX
     syn keyword cConstant INT8_MIN INT16_MIN INT32_MIN INT64_MIN
@@ -340,6 +381,26 @@
     syn keyword cConstant PTRDIFF_MIN PTRDIFF_MAX SIG_ATOMIC_MIN SIG_ATOMIC_MAX
     syn keyword cConstant SIZE_MAX WCHAR_MIN WCHAR_MAX WINT_MIN WINT_MAX
   endif
+  if !exists("c_no_c11")
+    syn keyword cConstant __STDC_UTF_16__ __STDC_UTF_32__ __STDC_ANALYZABLE__
+    syn keyword cConstant __STDC_LIB_EXT1__ __STDC_NO_ATOMICS__
+    syn keyword cConstant __STDC_NO_COMPLEX__ __STDC_NO_THREADS__
+    syn keyword cConstant __STDC_NO_VLA__
+  endif
+  if !exists("c_no_c23")
+    syn keyword cConstant __STDC_UTF_16__ __STDC_UTF_32__
+    syn keyword cConstant __STDC_EMBED_NOT_FOUND__ __STDC_EMBED_FOUND__
+    syn keyword cConstant __STDC_EMBED_EMPTY__ __STDC_IEC_60559_BFP__
+    syn keyword cConstant __STDC_IEC_60559_DFP__ __STDC_IEC_60559_COMPLEX__
+    syn keyword cConstant __STDC_IEC_60559_TYPES__
+    syn keyword cConstant BITINT_MAXWIDTH
+  endif
+  if (s:ft ==# "c" && !exists("c_no_c23")) || (s:in_cpp_family && !exists("cpp_no_cpp20"))
+    syn keyword cConstant __VA_OPT__
+  endif
+  if (s:ft ==# "c" && !exists("c_no_c23")) || (s:in_cpp_family && !exists("cpp_no_cpp11"))
+    syn keyword cConstant nullptr
+  endif
   syn keyword cConstant FLT_RADIX FLT_ROUNDS FLT_DIG FLT_MANT_DIG FLT_EPSILON DBL_DIG DBL_MANT_DIG DBL_EPSILON
   syn keyword cConstant LDBL_DIG LDBL_MANT_DIG LDBL_EPSILON FLT_MIN FLT_MAX FLT_MIN_EXP FLT_MAX_EXP FLT_MIN_10_EXP FLT_MAX_10_EXP
   syn keyword cConstant DBL_MIN DBL_MAX DBL_MIN_EXP DBL_MAX_EXP DBL_MIN_10_EXP DBL_MAX_10_EXP LDBL_MIN LDBL_MAX LDBL_MIN_EXP LDBL_MAX_EXP
@@ -377,37 +438,77 @@
 endif
 if !exists("c_no_c99") " ISO C99
   syn keyword cConstant true false
+  syn keyword cConstant INFINITY NAN
+  " math.h
+  syn keyword cConstant HUGE_VAL HUGE_VALF HUGE_VALL
+  syn keyword cConstant FP_FAST_FMAF FP_FAST_FMA FP_FAST_FMAL
+  syn keyword cConstant FP_ILOGB0 FP_ILOGBNAN
+  syn keyword cConstant math_errhandling MATH_ERRNO MATH_ERREXCEPT
+  syn keyword cConstant FP_NORMAL FP_SUBNORMAL FP_ZERO FP_INFINITE FP_NAN
 endif
 
 " Accept %: for # (C99)
-syn region	cPreCondit	start="^\s*\zs\%(%:\|#\)\s*\%(if\|ifdef\|ifndef\|elif\)\>" skip="\\$" end="$" keepend contains=cComment,cCommentL,cCppString,cCharacter,cCppParen,cParenError,cNumbers,cCommentError,cSpaceError
+syn cluster	cPreProcGroup	contains=cPreCondit,cIncluded,cInclude,cDefine,cErrInParen,cErrInBracket,cUserLabel,cSpecial,cOctalZero,cCppOutWrapper,cCppInWrapper,@cCppOutInGroup,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom,cString,cCommentSkip,cCommentString,cComment2String,@cCommentGroup,cCommentStartError,cParen,cBracket,cMulti,cBadBlock
+if !exists("c_no_c23")
+  syn region	cPreCondit	start="^\s*\zs\%(%:\|#\)\s*\%(el\)\=\%(if\|ifdef\|ifndef\)\>" skip="\\$" end="$" keepend contains=cComment,cCommentL,cCppString,cCharacter,cCppParen,cParenError,cNumbers,cCommentError,cSpaceError
+else
+  syn region	cPreCondit	start="^\s*\zs\%(%:\|#\)\s*\%(if\|ifdef\|ifndef\|elif\)\>"    skip="\\$" end="$" keepend contains=cComment,cCommentL,cCppString,cCharacter,cCppParen,cParenError,cNumbers,cCommentError,cSpaceError
+endif
 syn match	cPreConditMatch	display "^\s*\zs\%(%:\|#\)\s*\%(else\|endif\)\>"
 if !exists("c_no_if0")
   syn cluster	cCppOutInGroup	contains=cCppInIf,cCppInElse,cCppInElse2,cCppOutIf,cCppOutIf2,cCppOutElse,cCppInSkip,cCppOutSkip
   syn region	cCppOutWrapper	start="^\s*\zs\%(%:\|#\)\s*if\s\+0\+\s*\%($\|//\|/\*\|&\)" end=".\@=\|$" contains=cCppOutIf,cCppOutElse,@NoSpell fold
   syn region	cCppOutIf	contained start="0\+" matchgroup=cCppOutWrapper end="^\s*\%(%:\|#\)\s*endif\>" contains=cCppOutIf2,cCppOutElse
   if !exists("c_no_if0_fold")
-    syn region	cCppOutIf2	contained matchgroup=cCppOutWrapper start="0\+" end="^\s*\%(%:\|#\)\s*\%(else\>\|elif\s\+\%(0\+\s*\%($\|//\|/\*\|&\)\)\@!\|endif\>\)"me=s-1 contains=cSpaceError,cCppOutSkip,@Spell fold
+    if !exists("c_no_c23")
+      syn region	cCppOutIf2	contained matchgroup=cCppOutWrapper start="0\+" end="^\s*\%(%:\|#\)\s*\%(else\>\|el\%(if\|ifdef\|ifndef\)\s\+\%(0\+\s*\%($\|//\|/\*\|&\)\)\@!\|endif\>\)"me=s-1 contains=cSpaceError,cCppOutSkip,@Spell fold
+    else
+      syn region	cCppOutIf2	contained matchgroup=cCppOutWrapper start="0\+" end="^\s*\%(%:\|#\)\s*\%(else\>\|elif\s\+\%(0\+\s*\%($\|//\|/\*\|&\)\)\@!\|endif\>\)"me=s-1 contains=cSpaceError,cCppOutSkip,@Spell fold
+    endif
   else
-    syn region	cCppOutIf2	contained matchgroup=cCppOutWrapper start="0\+" end="^\s*\%(%:\|#\)\s*\%(else\>\|elif\s\+\%(0\+\s*\%($\|//\|/\*\|&\)\)\@!\|endif\>\)"me=s-1 contains=cSpaceError,cCppOutSkip,@Spell
+    if !exists("c_no_c23")
+      syn region	cCppOutIf2	contained matchgroup=cCppOutWrapper start="0\+" end="^\s*\%(%:\|#\)\s*\%(else\>\|el\%(if\|ifdef\|ifndef\)\s\+\%(0\+\s*\%($\|//\|/\*\|&\)\)\@!\|endif\>\)"me=s-1 contains=cSpaceError,cCppOutSkip,@Spell
+    else
+      syn region	cCppOutIf2	contained matchgroup=cCppOutWrapper start="0\+" end="^\s*\%(%:\|#\)\s*\%(else\>\|elif\s\+\%(0\+\s*\%($\|//\|/\*\|&\)\)\@!\|endif\>\)"me=s-1 contains=cSpaceError,cCppOutSkip,@Spell
+    endif
   endif
-  syn region	cCppOutElse	contained matchgroup=cCppOutWrapper start="^\s*\%(%:\|#\)\s*\%(else\|elif\)" end="^\s*\%(%:\|#\)\s*endif\>"me=s-1 contains=TOP,cPreCondit
+  if !exists("c_no_c23")
+    syn region	cCppOutElse	contained matchgroup=cCppOutWrapper start="^\s*\%(%:\|#\)\s*\%(else\|el\%(if\|ifdef\|ifndef\)\)" end="^\s*\%(%:\|#\)\s*endif\>"me=s-1 contains=TOP,cPreCondit
+  else
+    syn region	cCppOutElse	contained matchgroup=cCppOutWrapper start="^\s*\%(%:\|#\)\s*\%(else\|elif\)" end="^\s*\%(%:\|#\)\s*endif\>"me=s-1 contains=TOP,cPreCondit
+  endif
   syn region	cCppInWrapper	start="^\s*\zs\%(%:\|#\)\s*if\s\+0*[1-9]\d*\s*\%($\|//\|/\*\||\)" end=".\@=\|$" contains=cCppInIf,cCppInElse fold
   syn region	cCppInIf	contained matchgroup=cCppInWrapper start="\d\+" end="^\s*\%(%:\|#\)\s*endif\>" contains=TOP,cPreCondit
   if !exists("c_no_if0_fold")
-    syn region	cCppInElse	contained start="^\s*\%(%:\|#\)\s*\%(else\>\|elif\s\+\%(0*[1-9]\d*\s*\%($\|//\|/\*\||\)\)\@!\)" end=".\@=\|$" containedin=cCppInIf contains=cCppInElse2 fold
+    if !exists("c_no_c23")
+      syn region	cCppInElse	contained start="^\s*\%(%:\|#\)\s*\%(else\>\|el\%(if\|ifdef\|ifndef\)\s\+\%(0*[1-9]\d*\s*\%($\|//\|/\*\||\)\)\@!\)" end=".\@=\|$" containedin=cCppInIf contains=cCppInElse2 fold
+    else
+      syn region	cCppInElse	contained start="^\s*\%(%:\|#\)\s*\%(else\>\|elif\s\+\%(0*[1-9]\d*\s*\%($\|//\|/\*\||\)\)\@!\)" end=".\@=\|$" containedin=cCppInIf contains=cCppInElse2 fold
+    endif
   else
-    syn region	cCppInElse	contained start="^\s*\%(%:\|#\)\s*\%(else\>\|elif\s\+\%(0*[1-9]\d*\s*\%($\|//\|/\*\||\)\)\@!\)" end=".\@=\|$" containedin=cCppInIf contains=cCppInElse2
+    if !exists("c_no_c23")
+      syn region	cCppInElse	contained start="^\s*\%(%:\|#\)\s*\%(else\>\|el\%(if\|ifdef\|ifndef\)\s\+\%(0*[1-9]\d*\s*\%($\|//\|/\*\||\)\)\@!\)" end=".\@=\|$" containedin=cCppInIf contains=cCppInElse2
+    else
+      syn region	cCppInElse	contained start="^\s*\%(%:\|#\)\s*\%(else\>\|elif\s\+\%(0*[1-9]\d*\s*\%($\|//\|/\*\||\)\)\@!\)" end=".\@=\|$" containedin=cCppInIf contains=cCppInElse2
+    endif
   endif
-  syn region	cCppInElse2	contained matchgroup=cCppInWrapper start="^\s*\%(%:\|#\)\s*\%(else\|elif\)\%([^/]\|/[^/*]\)*" end="^\s*\%(%:\|#\)\s*endif\>"me=s-1 contains=cSpaceError,cCppOutSkip,@Spell
+  if !exists("c_no_c23")
+    syn region	cCppInElse2	contained matchgroup=cCppInWrapper start="^\s*\%(%:\|#\)\s*\%(else\|el\%(if\|ifdef\|ifndef\)\)\%([^/]\|/[^/*]\)*" end="^\s*\%(%:\|#\)\s*endif\>"me=s-1 contains=cSpaceError,cCppOutSkip,@Spell
+  else
+    syn region	cCppInElse2	contained matchgroup=cCppInWrapper start="^\s*\%(%:\|#\)\s*\%(else\|elif\)\%([^/]\|/[^/*]\)*" end="^\s*\%(%:\|#\)\s*endif\>"me=s-1 contains=cSpaceError,cCppOutSkip,@Spell
+  endif
   syn region	cCppOutSkip	contained start="^\s*\%(%:\|#\)\s*\%(if\>\|ifdef\>\|ifndef\>\)" skip="\\$" end="^\s*\%(%:\|#\)\s*endif\>" contains=cSpaceError,cCppOutSkip
   syn region	cCppInSkip	contained matchgroup=cCppInWrapper start="^\s*\%(%:\|#\)\s*\%(if\s\+\%(\d\+\s*\%($\|//\|/\*\||\|&\)\)\@!\|ifdef\>\|ifndef\>\)" skip="\\$" end="^\s*\%(%:\|#\)\s*endif\>" containedin=cCppOutElse,cCppInIf,cCppInSkip contains=TOP,cPreProc
 endif
 syn region	cIncluded	display contained start=+"+ skip=+\\\\\|\\"+ end=+"+
 syn match	cIncluded	display contained "<[^>]*>"
 syn match	cInclude	display "^\s*\zs\%(%:\|#\)\s*include\>\s*["<]" contains=cIncluded
+if !exists("c_no_c23") && !s:in_cpp_family
+  syn region	cInclude	start="^\s*\zs\%(%:\|#\)\s*embed\>" skip="\\$" end="$" keepend contains=cEmbed,cComment,cCommentL,cCppString,cCharacter,cCppParen,cParenError,cNumbers,cCommentError,cSpaceError
+  syn match     cEmbed		contained "\%(%:\|#\)\s*embed\>" nextgroup=cIncluded skipwhite transparent
+  syn cluster	cPreProcGroup	add=cEmbed
+endif
 "syn match cLineSkip	"\\$"
-syn cluster	cPreProcGroup	contains=cPreCondit,cIncluded,cInclude,cDefine,cErrInParen,cErrInBracket,cUserLabel,cSpecial,cOctalZero,cCppOutWrapper,cCppInWrapper,@cCppOutInGroup,cFormat,cNumber,cFloat,cOctal,cOctalError,cNumbersCom,cString,cCommentSkip,cCommentString,cComment2String,@cCommentGroup,cCommentStartError,cParen,cBracket,cMulti,cBadBlock
 syn region	cDefine		start="^\s*\zs\%(%:\|#\)\s*\%(define\|undef\)\>" skip="\\$" end="$" keepend contains=ALLBUT,@cPreProcGroup,@Spell
 syn region	cPreProc	start="^\s*\zs\%(%:\|#\)\s*\%(pragma\>\|line\>\|warning\>\|warn\>\|error\>\)" skip="\\$" end="$" keepend contains=ALLBUT,@cPreProcGroup,@Spell
 
diff --git a/runtime/syntax/testdir/dumps/c_bool_constant_00.dump b/runtime/syntax/testdir/dumps/c_bool_constant_00.dump
new file mode 100644
index 0000000..6aff5d9
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/c_bool_constant_00.dump
@@ -0,0 +1,20 @@
+>/+0#0000e05#ffffff0@1| |C| |b|o@1|l|e|a|n| |c|o|n|s|t|a|n|t|s| +0#0000000&@52
+@75
+|/+0#0000e05&@1| |S|o|u|r|c|e|:| |h|t@1|p|s|:|/@1|e|n|.|c|p@1|r|e|f|e|r|e|n|c|e|.|c|o|m|/|w|/|c|/|l|a|n|g|u|a|g|e|/|b|o@1|l|_|c|o|n|s|t|a|n|t| +0#0000000&@9
+@75
+|#+0#e000e06&|i|n|c|l|u|d|e| |<+0#e000002&|a|s@1|e|r|t|.|h|>| +0#0000000&@55
+@75
+|i+0#00e0003&|n|t| +0#0000000&|m|a|i|n|(|)| @64
+|{| @73
+@4|a|s@1|e|r|t|(|t+0#e000002&|r|u|e| +0#0000000&|=@1| |1+0#e000002&| +0#0000000&|&@1| |0+0#e000002&| +0#0000000&|=@1| |f+0#e000002&|a|l|s|e|)+0#0000000&|;| @38
+|}| @73
+@75
+|~+0#4040ff13&| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+| +0#0000000&@56|1|,|1| @10|A|l@1| 
diff --git a/runtime/syntax/testdir/dumps/c_bool_constant_01.dump b/runtime/syntax/testdir/dumps/c_bool_constant_01.dump
new file mode 100644
index 0000000..b1d4e57
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/c_bool_constant_01.dump
@@ -0,0 +1,20 @@
+> +0&#ffffff0@74
+|~+0#4040ff13&| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+| +0#0000000&@56|0|,|0|-|1| @8|A|l@1| 
diff --git a/runtime/syntax/testdir/dumps/c_character_constant_00.dump b/runtime/syntax/testdir/dumps/c_character_constant_00.dump
new file mode 100644
index 0000000..458e2b8
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/c_character_constant_00.dump
@@ -0,0 +1,20 @@
+>/+0#0000e05#ffffff0@1| |C| |c|h|a|r|a|c|t|e|r| |c|o|n|s|t|a|n|t|s| +0#0000000&@50
+@75
+|/+0#0000e05&@1| |S|o|u|r|c|e|:| |h|t@1|p|s|:|/@1|e|n|.|c|p@1|r|e|f|e|r|e|n|c|e|.|c|o|m|/|w|/|c|/|l|a|n|g|u|a|g|e|/|c|h|a|r|a|c|t|e|r|_|c|o|n|s|t|a|n|t| +0#0000000&@4
+@75
+|#+0#e000e06&|i|n|c|l|u|d|e| |<+0#e000002&|s|t|d@1|e|f|.|h|>| +0#0000000&@55
+|#+0#e000e06&|i|n|c|l|u|d|e| |<+0#e000002&|s|t|d|i|o|.|h|>| +0#0000000&@56
+|#+0#e000e06&|i|n|c|l|u|d|e| |<+0#e000002&|u|c|h|a|r|.|h|>| +0#0000000&@56
+@75
+|i+0#00e0003&|n|t| +0#0000000&|m|a|i|n| |(|v+0#00e0003&|o|i|d|)+0#0000000&| @59
+|{| @73
+@4|p|r|i|n|t|f|(|"+0#e000002&|c|o|n|s|t|a|n|t| |v|a|l|u|e| @4|\+0#e000e06&|n|"+0#e000002&|)+0#0000000&|;| @38
+@4|p|r|i|n|t|f|(|"+0#e000002&|-@7| |-@9|\+0#e000e06&|n|"+0#e000002&|)+0#0000000&|;| @38
+@75
+@4|/+0#0000e05&@1| |i|n|t|e|g|e|r| |c|h|a|r|a|c|t|e|r| |c|o|n|s|t|a|n|t|s|,| +0#0000000&@39
+@4|i+0#00e0003&|n|t| +0#0000000&|c|1|=|'+0#e000002&|a|'|;+0#0000000&| |p|r|i|n|t|f|(|"+0#e000002&|'|a|'|:|\+0#e000e06&|t| +0#e000002&|%+0#e000e06&|#|0|1|0|x|\|n|"+0#e000002&|,+0#0000000&| |c|1|)|;| @28
+@4|i+0#00e0003&|n|t| +0#0000000&|c|2|=|'+0#e000002&|🍌*&|'+&|;+0#0000000&| |p|r|i|n|t|f|(|"+0#e000002&|'|🍌*&|'+&|:|\+0#e000e06&|t| +0#e000002&|%+0#e000e06&|#|0|1|0|x|\|n|\|n|"+0#e000002&|,+0#0000000&| |c|2|)|;| |/+0#0000e05&@1| |i|m|p|l|e|m|e|n|t|a|t|i|o|n|-|d|e|f|i|n|e
+|d| +0#0000000&@73
+@75
+@4|/+0#0000e05&@1| |m|u|l|t|i|c|h|a|r|a|c|t|e|r| |c|o|n|s|t|a|n|t| +0#0000000&@44
+@57|1|,|1| @10|T|o|p| 
diff --git a/runtime/syntax/testdir/dumps/c_character_constant_01.dump b/runtime/syntax/testdir/dumps/c_character_constant_01.dump
new file mode 100644
index 0000000..f0ed04d
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/c_character_constant_01.dump
@@ -0,0 +1,20 @@
+| +0&#ffffff0@3|/+0#0000e05&@1| |i|n|t|e|g|e|r| |c|h|a|r|a|c|t|e|r| |c|o|n|s|t|a|n|t|s|,| +0#0000000&@39
+@4|i+0#00e0003&|n|t| +0#0000000&|c|1|=|'+0#e000002&|a|'|;+0#0000000&| |p|r|i|n|t|f|(|"+0#e000002&|'|a|'|:|\+0#e000e06&|t| +0#e000002&|%+0#e000e06&|#|0|1|0|x|\|n|"+0#e000002&|,+0#0000000&| |c|1|)|;| @28
+@4|i+0#00e0003&|n|t| +0#0000000&|c|2|=|'+0#e000002&|🍌*&|'+&|;+0#0000000&| |p|r|i|n|t|f|(|"+0#e000002&|'|🍌*&|'+&|:|\+0#e000e06&|t| +0#e000002&|%+0#e000e06&|#|0|1|0|x|\|n|\|n|"+0#e000002&|,+0#0000000&| |c|2|)|;| |/+0#0000e05&@1| |i|m|p|l|e|m|e|n|t|a|t|i|o|n|-|d|e|f|i|n|e
+|d| +0#0000000&@73
+@75
+@4>/+0#0000e05&@1| |m|u|l|t|i|c|h|a|r|a|c|t|e|r| |c|o|n|s|t|a|n|t| +0#0000000&@44
+@4|i+0#00e0003&|n|t| +0#0000000&|c|3|=|'|a|b|'|;| |p|r|i|n|t|f|(|"+0#e000002&|'|a|b|'|:|\+0#e000e06&|t| +0#e000002&|%+0#e000e06&|#|0|1|0|x|\|n|\|n|"+0#e000002&|,+0#0000000&| |c|3|)|;| |/+0#0000e05&@1| |i|m|p|l|e|m|e|n|t|a|t|i|o|n|-|d|e|f|i|n|e
+|d| +0#0000000&@73
+@75
+@4|/+0#0000e05&@1| |1|6|-|b|i|t| |w|i|d|e| |c|h|a|r|a|c|t|e|r| |c|o|n|s|t|a|n|t|s| +0#0000000&@36
+@4|c+0#00e0003&|h|a|r|1|6|_|t| +0#0000000&|u|c|1| |=| |u+0#e000002&|'|a|'|;+0#0000000&| |p|r|i|n|t|f|(|"+0#e000002&|'|a|'|:|\+0#e000e06&|t| +0#e000002&|%+0#e000e06&|#|0|1|0|x|\|n|"+0#e000002&|,+0#0000000&| |(|i+0#00e0003&|n|t|)+0#0000000&|u|c|1|)|;| @13
+@4|c+0#00e0003&|h|a|r|1|6|_|t| +0#0000000&|u|c|2| |=| |u+0#e000002&|'|¢|'|;+0#0000000&| |p|r|i|n|t|f|(|"+0#e000002&|'|¢|'|:|\+0#e000e06&|t| +0#e000002&|%+0#e000e06&|#|0|1|0|x|\|n|"+0#e000002&|,+0#0000000&| |(|i+0#00e0003&|n|t|)+0#0000000&|u|c|2|)|;| @13
+@4|c+0#00e0003&|h|a|r|1|6|_|t| +0#0000000&|u|c|3| |=| |u+0#e000002&|'|猫*&|'+&|;+0#0000000&| |p|r|i|n|t|f|(|"+0#e000002&|'|猫*&|'+&|:|\+0#e000e06&|t| +0#e000002&|%+0#e000e06&|#|0|1|0|x|\|n|"+0#e000002&|,+0#0000000&| |(|i+0#00e0003&|n|t|)+0#0000000&|u|c|3|)|;| @11
+@4|/+0#0000e05&@1| |i|m|p|l|e|m|e|n|t|a|t|i|o|n|-|d|e|f|i|n|e|d| |(|🍌*&| +&|m|a|p|s| |t|o| |t|w|o| |1|6|-|b|i|t| |c|h|a|r|a|c|t|e|r|s|)| +0#0000000&@10
+@4|c+0#00e0003&|h|a|r|1|6|_|t| +0#0000000&|u|c|4| |=| |u+0#e000002&|'|🍌*&|'+&|;+0#0000000&| |p|r|i|n|t|f|(|"+0#e000002&|'|🍌*&|'+&|:|\+0#e000e06&|t| +0#e000002&|%+0#e000e06&|#|0|1|0|x|\|n|\|n|"+0#e000002&|,+0#0000000&| |(|i+0#00e0003&|n|t|)+0#0000000&|u|c|4|)|;| @9
+@75
+@4|/+0#0000e05&@1| |3|2|-|b|i|t| |w|i|d|e| |c|h|a|r|a|c|t|e|r| |c|o|n|s|t|a|n|t|s| +0#0000000&@36
+@4|c+0#00e0003&|h|a|r|3|2|_|t| +0#0000000&|U|c|1| |=| |U+0#e000002&|'|a|'|;+0#0000000&| |p|r|i|n|t|f|(|"+0#e000002&|'|a|'|:|\+0#e000e06&|t| +0#e000002&|%+0#e000e06&|#|0|1|0|x|\|n|"+0#e000002&|,+0#0000000&| |(|i+0#00e0003&|n|t|)+0#0000000&|U|c|1|)|;| @13
+@4|c+0#00e0003&|h|a|r|3|2|_|t| +0#0000000&|U|c|2| |=| |U+0#e000002&|'|¢|'|;+0#0000000&| |p|r|i|n|t|f|(|"+0#e000002&|'|¢|'|:|\+0#e000e06&|t| +0#e000002&|%+0#e000e06&|#|0|1|0|x|\|n|"+0#e000002&|,+0#0000000&| |(|i+0#00e0003&|n|t|)+0#0000000&|U|c|2|)|;| @13
+@57|1|8|,|5| @9|5|6|%| 
diff --git a/runtime/syntax/testdir/dumps/c_character_constant_02.dump b/runtime/syntax/testdir/dumps/c_character_constant_02.dump
new file mode 100644
index 0000000..e08b11b
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/c_character_constant_02.dump
@@ -0,0 +1,20 @@
+| +0&#ffffff0@3|c+0#00e0003&|h|a|r|3|2|_|t| +0#0000000&|U|c|2| |=| |U+0#e000002&|'|¢|'|;+0#0000000&| |p|r|i|n|t|f|(|"+0#e000002&|'|¢|'|:|\+0#e000e06&|t| +0#e000002&|%+0#e000e06&|#|0|1|0|x|\|n|"+0#e000002&|,+0#0000000&| |(|i+0#00e0003&|n|t|)+0#0000000&|U|c|2|)|;| @13
+@4|c+0#00e0003&|h|a|r|3|2|_|t| +0#0000000&|U|c|3| |=| |U+0#e000002&|'|猫*&|'+&|;+0#0000000&| |p|r|i|n|t|f|(|"+0#e000002&|'|猫*&|'+&|:|\+0#e000e06&|t| +0#e000002&|%+0#e000e06&|#|0|1|0|x|\|n|"+0#e000002&|,+0#0000000&| |(|i+0#00e0003&|n|t|)+0#0000000&|U|c|3|)|;| @11
+@4|c+0#00e0003&|h|a|r|3|2|_|t| +0#0000000&|U|c|4| |=| |U+0#e000002&|'|🍌*&|'+&|;+0#0000000&| |p|r|i|n|t|f|(|"+0#e000002&|'|🍌*&|'+&|:|\+0#e000e06&|t| +0#e000002&|%+0#e000e06&|#|0|1|0|x|\|n|\|n|"+0#e000002&|,+0#0000000&| |(|i+0#00e0003&|n|t|)+0#0000000&|U|c|4|)|;| @9
+@75
+@4|/+0#0000e05&@1| |w|i|d|e| |c|h|a|r|a|c|t|e|r| |c|o|n|s|t|a|n|t|s| +0#0000000&@43
+@4>w+0#00e0003&|c|h|a|r|_|t| +0#0000000&|w|c|1| |=| |L+0#e000002&|'|a|'|;+0#0000000&| |p|r|i|n|t|f|(|"+0#e000002&|'|a|'|:|\+0#e000e06&|t| +0#e000002&|%+0#e000e06&|#|0|1|0|x|\|n|"+0#e000002&|,+0#0000000&| |(|i+0#00e0003&|n|t|)+0#0000000&|w|c|1|)|;| @14
+@4|w+0#00e0003&|c|h|a|r|_|t| +0#0000000&|w|c|2| |=| |L+0#e000002&|'|¢|'|;+0#0000000&| |p|r|i|n|t|f|(|"+0#e000002&|'|¢|'|:|\+0#e000e06&|t| +0#e000002&|%+0#e000e06&|#|0|1|0|x|\|n|"+0#e000002&|,+0#0000000&| |(|i+0#00e0003&|n|t|)+0#0000000&|w|c|2|)|;| @14
+@4|w+0#00e0003&|c|h|a|r|_|t| +0#0000000&|w|c|3| |=| |L+0#e000002&|'|猫*&|'+&|;+0#0000000&| |p|r|i|n|t|f|(|"+0#e000002&|'|猫*&|'+&|:|\+0#e000e06&|t| +0#e000002&|%+0#e000e06&|#|0|1|0|x|\|n|"+0#e000002&|,+0#0000000&| |(|i+0#00e0003&|n|t|)+0#0000000&|w|c|3|)|;| @12
+@4|w+0#00e0003&|c|h|a|r|_|t| +0#0000000&|w|c|4| |=| |L+0#e000002&|'|🍌*&|'+&|;+0#0000000&| |p|r|i|n|t|f|(|"+0#e000002&|'|🍌*&|'+&|:|\+0#e000e06&|t| +0#e000002&|%+0#e000e06&|#|0|1|0|x|\|n|\|n|"+0#e000002&|,+0#0000000&| |(|i+0#00e0003&|n|t|)+0#0000000&|w|c|4|)|;| @10
+|}| @73
+@75
+|~+0#4040ff13&| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+| +0#0000000&@56|3|5|,|5| @9|B|o|t| 
diff --git a/runtime/syntax/testdir/dumps/c_integer_constant_00.dump b/runtime/syntax/testdir/dumps/c_integer_constant_00.dump
new file mode 100644
index 0000000..2a87e5b
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/c_integer_constant_00.dump
@@ -0,0 +1,20 @@
+>/+0#0000e05#ffffff0@1| |C| |i|n|t|e|g|e|r| |c|o|n|s|t|a|n|t|s| +0#0000000&@52
+@75
+|/+0#0000e05&@1| |S|o|u|r|c|e|:| |h|t@1|p|s|:|/@1|e|n|.|c|p@1|r|e|f|e|r|e|n|c|e|.|c|o|m|/|w|/|c|/|l|a|n|g|u|a|g|e|/|i|n|t|e|g|e|r|_|c|o|n|s|t|a|n|t| +0#0000000&@6
+@75
+|#+0#e000e06&|i|n|c|l|u|d|e| |<+0#e000002&|i|n|t@1|y|p|e|s|.|h|>| +0#0000000&@53
+|#+0#e000e06&|i|n|c|l|u|d|e| |<+0#e000002&|s|t|d|i|o|.|h|>| +0#0000000&@56
+@75
+|i+0#00e0003&|n|t| +0#0000000&|m|a|i|n|(|v+0#00e0003&|o|i|d|)+0#0000000&| @60
+|{| @73
+@4|p|r|i|n|t|f|(|"+0#e000002&|1|2|3| |=| |%+0#e000e06&|d|\|n|"+0#e000002&|,+0#0000000&| |1+0#e000002&|2|3|)+0#0000000&|;| @44
+@4|p|r|i|n|t|f|(|"+0#e000002&|0|1|2|3| |=| |%+0#e000e06&|d|\|n|"+0#e000002&|,+0#0000000&| |0+0#e000002&|1|2|3|)+0#0000000&|;| @42
+@4|p|r|i|n|t|f|(|"+0#e000002&|0|x|1|2|3| |=| |%+0#e000e06&|d|\|n|"+0#e000002&|,+0#0000000&| |0+0#e000002&|x|1|2|3|)+0#0000000&|;| @40
+@4|p|r|i|n|t|f|(|"+0#e000002&|1|2|3|4|5|6|7|8|9|0|1|2|3|4|5|6|7|8|9|0|u|l@1| |=| |%+0#e000e06&|l@1|u|\|n|"+0#e000002&|,+0#0000000&| |1+0#e000002&|2|3|4|5|6|7|8|9|0|1|2|3|4|5|6|7|8|9|0|u|l@1|)+0#0000000&|;| @2
+@4|/+0#0000e05&@1| |t|h|e| |t|y|p|e| |i|s| |a| |6|4|-|b|i|t| |t|y|p|e| |(|u|n|s|i|g|n|e|d| |l|o|n|g| |l|o|n|g| |o|r| |p|o|s@1|i|b|l|y| |u|n|s|i|g|n|e|d| |l
+|o|n|g|)| +0#0000000&@70
+@4|/+0#0000e05&@1| |e|v|e|n| |w|i|t|h|o|u|t| |a| |l|o|n|g| |s|u|f@1|i|x| +0#0000000&@41
+@4|p|r|i|n|t|f|(|"+0#e000002&|1|2|3|4|5|6|7|8|9|0|1|2|3|4|5|6|7|8|9|0|u| |=| |%|"|P+0#0000000&|R|I|u|6|4|"+0#e000002&|\+0#e000e06&|n|"+0#e000002&|,+0#0000000&| |1+0#e000002&|2|3|4|5|6|7|8|9|0|1|2|3|4|5|6|7|8|9|0|u| +0#0000000&|)|;| 
+@75
+@4|/+0#0000e05&@1| |p|r|i|n|t|f|(|"|%|l@1|d|\|n|"|,| |-|9|2@1|3@1|7|2|0|3|6|8|5|4|7@1|5|8|0|8|)|;| |/@1| |E|r@1|o|r|:| +0#0000000&@18
+@57|1|,|1| @10|T|o|p| 
diff --git a/runtime/syntax/testdir/dumps/c_integer_constant_01.dump b/runtime/syntax/testdir/dumps/c_integer_constant_01.dump
new file mode 100644
index 0000000..f1ebddd
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/c_integer_constant_01.dump
@@ -0,0 +1,20 @@
+| +0&#ffffff0@3|/+0#0000e05&@1| |t|h|e| |t|y|p|e| |i|s| |a| |6|4|-|b|i|t| |t|y|p|e| |(|u|n|s|i|g|n|e|d| |l|o|n|g| |l|o|n|g| |o|r| |p|o|s@1|i|b|l|y| |u|n|s|i|g|n|e|d| |l
+|o|n|g|)| +0#0000000&@70
+@4|/+0#0000e05&@1| |e|v|e|n| |w|i|t|h|o|u|t| |a| |l|o|n|g| |s|u|f@1|i|x| +0#0000000&@41
+@4|p|r|i|n|t|f|(|"+0#e000002&|1|2|3|4|5|6|7|8|9|0|1|2|3|4|5|6|7|8|9|0|u| |=| |%|"|P+0#0000000&|R|I|u|6|4|"+0#e000002&|\+0#e000e06&|n|"+0#e000002&|,+0#0000000&| |1+0#e000002&|2|3|4|5|6|7|8|9|0|1|2|3|4|5|6|7|8|9|0|u| +0#0000000&|)|;| 
+@75
+@4>/+0#0000e05&@1| |p|r|i|n|t|f|(|"|%|l@1|d|\|n|"|,| |-|9|2@1|3@1|7|2|0|3|6|8|5|4|7@1|5|8|0|8|)|;| |/@1| |E|r@1|o|r|:| +0#0000000&@18
+@8|/+0#0000e05&@1| |t|h|e| |v|a|l|u|e| |9|2@1|3@1|7|2|0|3|6|8|5|4|7@1|5|8|0|8| |c|a|n@1|o|t| |f|i|t| |i|n| |s|i|g|n|e|d| |l|o|n|g| |l|o|n|g|,| |w|h
+|i|c|h| +0#0000000&@71
+@8|/+0#0000e05&@1| |i|s| |t|h|e| |b|i|g@1|e|s|t| |t|y|p|e| |a|l@1|o|w|e|d| |f|o|r| |u|n|s|u|f@1|i|x|e|d| |d|e|c|i|m|a|l| |i|n|t|e|g|e|r| |c|o|n|s|t
+|a|n|t| +0#0000000&@71
+@75
+@4|p|r|i|n|t|f|(|"+0#e000002&|%+0#e000e06&|l@1|u|\|n|"+0#e000002&|,+0#0000000&| |-|9+0#e000002&|2@1|3@1|7|2|0|3|6|8|5|4|7@1|5|8|0|8|u|l@1| +0#0000000&|)|;| @27
+@4|/+0#0000e05&@1| |u|n|a|r|y| |m|i|n|u|s| |a|p@1|l|i|e|d| |t|o| |u|n|s|i|g|n|e|d| |v|a|l|u|e| |s|u|b|t|r|a|c|t|s| |i|t| |f|r|o|m| |2|^|6|4|,| +0#0000000&@6
+@4|/+0#0000e05&@1| |t|h|i|s| |g|i|v|e|s| |u|n|s|i|g|n|e|d| |9|2@1|3@1|7|2|0|3|6|8|5|4|7@1|5|8|0|8| +0#0000000&@28
+@75
+@4|p|r|i|n|t|f|(|"+0#e000002&|%+0#e000e06&|l@1|d|\|n|"+0#e000002&|,+0#0000000&| |-|9+0#e000002&|2@1|3@1|7|2|0|3|6|8|5|4|7@1|5|8|0|7|l@1| +0#0000000&|-| |1+0#e000002&|)+0#0000000&|;| @25
+@4|/+0#0000e05&@1| |c|o|r@1|e|c|t| |w|a|y| |t|o| |f|o|r|m| |s|i|g|n|e|d| |v|a|l|u|e| |-|9|2@1|3@1|7|2|0|3|6|8|5|4|7@1|5|8|0|8| +0#0000000&@14
+|}| @73
+@75
+@57|1|8|,|5| @9|5|2|%| 
diff --git a/runtime/syntax/testdir/dumps/c_integer_constant_02.dump b/runtime/syntax/testdir/dumps/c_integer_constant_02.dump
new file mode 100644
index 0000000..0fd7251
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/c_integer_constant_02.dump
@@ -0,0 +1,20 @@
+| +0&#ffffff0@74
+|i+0#00e0003&|n|t| +0#0000000&|d| |=| |4+0#e000002&|2|;+0#0000000&| @63
+|i+0#00e0003&|n|t| +0#0000000&|o| |=| |0+0#e000002&|5|2|;+0#0000000&| @62
+|i+0#00e0003&|n|t| +0#0000000&|x| |=| |0+0#e000002&|x|2|a|;+0#0000000&| @61
+|i+0#00e0003&|n|t| +0#0000000&|X| |=| |0+0#e000002&|X|2|A|;+0#0000000&| @61
+>i+0#00e0003&|n|t| +0#0000000&|b| |=| |0+0#e000002&|b|1|0|1|0|1|0|;+0#0000000&| |/+0#0000e05&@1| |C|2|3| +0#0000000&@50
+@75
+|/+0#0000e05&@1| |T|h|e| |f|o|l@1|o|w|i|n|g| |v|a|r|i|a|b|l|e|s| |a|r|e| |a|l|s|o| |i|n|i|t|i|a|l|i|z|e|d| |t|o| |t|h|e| |s|a|m|e| |v|a|l|u|e|:| +0#0000000&@8
+@75
+|u+0#00e0003&|n|s|i|g|n|e|d| +0#0000000&|l+0#00e0003&|o|n|g| +0#0000000&|l+0#00e0003&|o|n|g| +0#0000000&|l|1| |=| |1+0#e000002&|8|4@1|6|7|4@1|0|7|3|7|0|9|5@1|0|5|9|2|u|l@1|;+0#0000000&| |/+0#0000e05&@1| |C|9@1| +0#0000000&@19
+|u+0#00e0003&|n|s|i|g|n|e|d| +0#0000000&|l+0#00e0003&|o|n|g| +0#0000000&|l+0#00e0003&|o|n|g| +0#0000000&|l|2| |=| |1+0#e000002&|8|'|4@1|6|'|7|4@1|'|0|7|3|'|7|0|9|'|5@1|0|'|5|9|2|l@1|u|;+0#0000000&| |/+0#0000e05&@1| |C|2|3| +0#0000000&@13
+|u+0#00e0003&|n|s|i|g|n|e|d| +0#0000000&|l+0#00e0003&|o|n|g| +0#0000000&|l+0#00e0003&|o|n|g| +0#0000000&|l|3| |=| |1+0#e000002&|8|4@1|'|6|7|4@1|'|0|7|3|7|'|0|9|5@1|'|0|5|9|2|u|L@1|;+0#0000000&| |/+0#0000e05&@1| |C|2|3| +0#0000000&@15
+|u+0#00e0003&|n|s|i|g|n|e|d| +0#0000000&|l+0#00e0003&|o|n|g| +0#0000000&|l+0#00e0003&|o|n|g| +0#0000000&|l|4| |=| |1+0#e000002&|8|4@1|6|7|'|4@1|0|7|3|7|'|0|'|9|5@1|0|5|'|9|2|L@1|U|;+0#0000000&| |/+0#0000e05&@1| |C|2|3| +0#0000000&@15
+|~+0#4040ff13&| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+| +0#0000000&@56|3|4|,|1| @9|B|o|t| 
diff --git a/runtime/syntax/testdir/dumps/c_preprocessor_conditional_00.dump b/runtime/syntax/testdir/dumps/c_preprocessor_conditional_00.dump
new file mode 100644
index 0000000..c8a8e3a
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/c_preprocessor_conditional_00.dump
@@ -0,0 +1,20 @@
+>/+0#0000e05#ffffff0@1| |C| |p|r|e|p|r|o|c|e|s@1|o|r| |-| |c|o|n|d|i|t|i|o|n|a|l| |i|n|c|l|u|s|i|o|n| +0#0000000&@33
+@75
+|/+0#0000e05&@1| |S|o|u|r|c|e|:| |h|t@1|p|s|:|/@1|e|n|.|c|p@1|r|e|f|e|r|e|n|c|e|.|c|o|m|/|w|/|c|/|p|r|e|p|r|o|c|e|s@1|o|r|/|c|o|n|d|i|t|i|o|n|a|l| +0#0000000&@7
+@75
+|#+0#e000e06&|d|e|f|i|n|e| |A|B|C|D| |2+0#e000002&| +0#0000000&@60
+|#+0#e000e06&|i|n|c|l|u|d|e| |<+0#e000002&|s|t|d|i|o|.|h|>| +0#0000000&@56
+@75
+|i+0#00e0003&|n|t| +0#0000000&|m|a|i|n|(|v+0#00e0003&|o|i|d|)+0#0000000&| @60
+|{| @73
+@75
+|#+0#e000e06&|i|f|d|e|f| |A|B|C|D| +0#0000000&@63
+@4|p|r|i|n|t|f|(|"+0#e000002&|1|:| |y|e|s|\+0#e000e06&|n|"+0#e000002&|)+0#0000000&|;| @51
+|#+0#e000e06&|e|l|s|e| +0#0000000&@69
+@4|p|r|i|n|t|f|(|"+0#e000002&|1|:| |n|o|\+0#e000e06&|n|"+0#e000002&|)+0#0000000&|;| @52
+|#+0#e000e06&|e|n|d|i|f| +0#0000000&@68
+@75
+|#+0#e000e06&|i|f|n|d|e|f| |A|B|C|D| +0#0000000&@62
+@4|p|r|i|n|t|f|(|"+0#e000002&|2|:| |n|o|1|\+0#e000e06&|n|"+0#e000002&|)+0#0000000&|;| @51
+|#+0#e000e06&|e|l|i|f| |A|B|C|D| |=@1| |2+0#e000002&| +0#0000000&@59
+@57|1|,|1| @10|T|o|p| 
diff --git a/runtime/syntax/testdir/dumps/c_preprocessor_conditional_01.dump b/runtime/syntax/testdir/dumps/c_preprocessor_conditional_01.dump
new file mode 100644
index 0000000..c63205e
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/c_preprocessor_conditional_01.dump
@@ -0,0 +1,20 @@
+| +0&#ffffff0@3|p|r|i|n|t|f|(|"+0#e000002&|1|:| |n|o|\+0#e000e06&|n|"+0#e000002&|)+0#0000000&|;| @52
+|#+0#e000e06&|e|n|d|i|f| +0#0000000&@68
+@75
+|#+0#e000e06&|i|f|n|d|e|f| |A|B|C|D| +0#0000000&@62
+@4|p|r|i|n|t|f|(|"+0#e000002&|2|:| |n|o|1|\+0#e000e06&|n|"+0#e000002&|)+0#0000000&|;| @51
+>#+0#e000e06&|e|l|i|f| |A|B|C|D| |=@1| |2+0#e000002&| +0#0000000&@59
+@4|p|r|i|n|t|f|(|"+0#e000002&|2|:| |y|e|s|\+0#e000e06&|n|"+0#e000002&|)+0#0000000&|;| @51
+|#+0#e000e06&|e|l|s|e| +0#0000000&@69
+@4|p|r|i|n|t|f|(|"+0#e000002&|2|:| |n|o|2|\+0#e000e06&|n|"+0#e000002&|)+0#0000000&|;| @51
+|#+0#e000e06&|e|n|d|i|f| +0#0000000&@68
+@75
+|#+0#e000e06&|i|f| |!|d|e|f|i|n|e|d|(|D|C|B|A|)| |&@1| |(|A|B|C|D| |<| |2+0#e000002&| +0#e000e06&|*| |4+0#e000002&| +0#e000e06&|-| |3+0#e000002&|)+0#e000e06&| +0#0000000&@34
+@4|p|r|i|n|t|f|(|"+0#e000002&|3|:| |y|e|s|\+0#e000e06&|n|"+0#e000002&|)+0#0000000&|;| @51
+|#+0#e000e06&|e|n|d|i|f| +0#0000000&@68
+@75
+|/+0#0000e05&@1| |C|2|3| |d|i|r|e|c|t|i|v|e|s| |#|e|l|i|f|d|e|f|/|#|e|l|i|f|n|d|e|f| +0#0000000&@38
+|#+0#e000e06&|i|f|d|e|f| |C|P|U| +0#0000000&@64
+@4|p|r|i|n|t|f|(|"+0#e000002&|4|:| |n|o|1|\+0#e000e06&|n|"+0#e000002&|)+0#0000000&|;| @51
+|#+0#e000e06&|e|l|i|f|d|e|f| |G|P|U| +0#0000000&@62
+@57|1|9|,|1| @9|6|1|%| 
diff --git a/runtime/syntax/testdir/dumps/c_preprocessor_conditional_02.dump b/runtime/syntax/testdir/dumps/c_preprocessor_conditional_02.dump
new file mode 100644
index 0000000..17bbac1
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/c_preprocessor_conditional_02.dump
@@ -0,0 +1,20 @@
+|#+0#e000e06#ffffff0|e|l|i|f|d|e|f| |G|P|U| +0#0000000&@62
+@4|p|r|i|n|t|f|(|"+0#e000002&|4|:| |n|o|2|\+0#e000e06&|n|"+0#e000002&|)+0#0000000&|;| @51
+|#+0#e000e06&|e|l|i|f|n|d|e|f| |R|A|M| +0#0000000&@61
+@4|p|r|i|n|t|f|(|"+0#e000002&|4|:| |y|e|s|\+0#e000e06&|n|"+0#e000002&|)+0#0000000&|;| |/+0#0000e05&@1| |s|e|l|e|c|t|e|d| |i|n| |C|2|3| |m|o|d|e|,| |m|a|y| |b|e| |s|e|l|e|c|t|e|d| |i|n| |p|r|e|-|C|2|3
+| |m|o|d|e| +0#0000000&@69
+>#+0#e000e06&|e|l|s|e| +0#0000000&@69
+@4|p|r|i|n|t|f|(|"+0#e000002&|4|:| |n|o|3|\+0#e000e06&|n|"+0#e000002&|)+0#0000000&|;| |/+0#0000e05&@1| |m|a|y| |b|e| |s|e|l|e|c|t|e|d| |i|n| |p|r|e|-|C|2|3| |m|o|d|e| +0#0000000&@16
+|#+0#e000e06&|e|n|d|i|f| +0#0000000&@68
+|}| @73
+@75
+|~+0#4040ff13&| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+| +0#0000000&@56|3|6|,|1| @9|B|o|t| 
diff --git a/runtime/syntax/testdir/dumps/c_preprocessor_embed_00.dump b/runtime/syntax/testdir/dumps/c_preprocessor_embed_00.dump
new file mode 100644
index 0000000..ead4640
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/c_preprocessor_embed_00.dump
@@ -0,0 +1,20 @@
+>/+0#0000e05#ffffff0@1| |C| |p|r|e|p|r|o|c|e|s@1|o|r| |-| |b|i|n|a|r|y| |r|e|s|o|u|r|c|e| |i|n|c|l|u|s|i|o|n| +0#0000000&@29
+@75
+|/+0#0000e05&@1| |S|o|u|r|c|e|:| |h|t@1|p|s|:|/@1|e|n|.|c|p@1|r|e|f|e|r|e|n|c|e|.|c|o|m|/|w|/|c|/|p|r|e|p|r|o|c|e|s@1|o|r|/|e|m|b|e|d| +0#0000000&@13
+@75
+|#+0#e000e06&|i|n|c|l|u|d|e| |<+0#e000002&|s|t|d|i|n|t|.|h|>| +0#0000000&@55
+|#+0#e000e06&|i|n|c|l|u|d|e| |<+0#e000002&|s|t|d|i|o|.|h|>| +0#0000000&@56
+@75
+|c+0#00e0003&|o|n|s|t| +0#0000000&|u+0#00e0003&|i|n|t|8|_|t| +0#0000000&|i|m|a|g|e|_|d|a|t|a|[|]| |=| |{| @44
+|#+0#e000e06&|e|m|b|e|d| |"+0#e000002&|i|m|a|g|e|.|p|n|g|"| +0#0000000&@56
+|}|;| @72
+@75
+|c+0#00e0003&|o|n|s|t| +0#0000000&|c+0#00e0003&|h|a|r| +0#0000000&|m|e|s@1|a|g|e|[|]| |=| |{| @50
+|#+0#e000e06&|e|m|b|e|d| |"+0#e000002&|m|e|s@1|a|g|e|.|t|x|t|"| +0#e000e06&|i|f|_|e|m|p|t|y|(|'+0#e000002&|M|'|,+0#e000e06&| |'+0#e000002&|i|'|,+0#e000e06&| |'+0#e000002&|s|'|,+0#e000e06&| |'+0#e000002&|s|'|,+0#e000e06&| |'+0#e000002&|i|'|,+0#e000e06&| |'+0#e000002&|n|'|,+0#e000e06&| |'+0#e000002&|g|'|,+0#e000e06&| |'|\|n|'|)| +0#0000000&@4
+|,|'+0#e000e06&|\|0|'| +0#0000000&|/+0#0000e05&@1| |n|u|l@1| |t|e|r|m|i|n|a|t|o|r| +0#0000000&@50
+|}|;| @72
+@75
+|v+0#00e0003&|o|i|d| +0#0000000&|d|u|m|p|(|c+0#00e0003&|o|n|s|t| +0#0000000&|u+0#00e0003&|i|n|t|8|_|t| +0#0000000&|a|r@1|[|]|,| |s+0#00e0003&|i|z|e|_|t| +0#0000000&|s|i|z|e|)| @31
+|{| @73
+@4|f+0#af5f00255&|o|r| +0#0000000&|(|s+0#00e0003&|i|z|e|_|t| +0#0000000&|i| |=| |0+0#e000002&|;+0#0000000&| |i| |!|=| |s|i|z|e|;| |+@1|i|)| @36
+@57|1|,|1| @10|T|o|p| 
diff --git a/runtime/syntax/testdir/dumps/c_preprocessor_embed_01.dump b/runtime/syntax/testdir/dumps/c_preprocessor_embed_01.dump
new file mode 100644
index 0000000..0f59426
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/c_preprocessor_embed_01.dump
@@ -0,0 +1,20 @@
+|,+0&#ffffff0|'+0#e000e06&|\|0|'| +0#0000000&|/+0#0000e05&@1| |n|u|l@1| |t|e|r|m|i|n|a|t|o|r| +0#0000000&@50
+|}|;| @72
+@75
+|v+0#00e0003&|o|i|d| +0#0000000&|d|u|m|p|(|c+0#00e0003&|o|n|s|t| +0#0000000&|u+0#00e0003&|i|n|t|8|_|t| +0#0000000&|a|r@1|[|]|,| |s+0#00e0003&|i|z|e|_|t| +0#0000000&|s|i|z|e|)| @31
+|{| @73
+@4>f+0#af5f00255&|o|r| +0#0000000&|(|s+0#00e0003&|i|z|e|_|t| +0#0000000&|i| |=| |0+0#e000002&|;+0#0000000&| |i| |!|=| |s|i|z|e|;| |+@1|i|)| @36
+@8|p|r|i|n|t|f|(|"+0#e000002&|%+0#e000e06&|0|2|X|%|c|"+0#e000002&|,+0#0000000&| |a|r@1|[|i|]|,| |(|i| |+| |1+0#e000002&|)+0#0000000&| |%| |1+0#e000002&|6| +0#0000000&|?| |'+0#e000002&| |'| +0#0000000&|:| |'+0#e000e06&|\|n|'|)+0#0000000&|;| @14
+@4|p|u|t|s|(|"+0#e000002&@1|)+0#0000000&|;| @61
+|}| @73
+@75
+|i+0#00e0003&|n|t| +0#0000000&|m|a|i|n|(|)| @64
+|{| @73
+@4|p|u|t|s|(|"+0#e000002&|i|m|a|g|e|_|d|a|t|a|[|]|:|"|)+0#0000000&|;| @48
+@4|d|u|m|p|(|i|m|a|g|e|_|d|a|t|a|,| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|i|m|a|g|e|_|d|a|t|a|)|;| @34
+@4|p|u|t|s|(|"+0#e000002&|m|e|s@1|a|g|e|[|]|:|"|)+0#0000000&|;| @51
+@4|d|u|m|p|(@1|c+0#00e0003&|o|n|s|t| +0#0000000&|u+0#00e0003&|i|n|t|8|_|t|*+0#0000000&|)|m|e|s@1|a|g|e|,| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|m|e|s@1|a|g|e|)|;| @24
+|}| @73
+@75
+|~+0#4040ff13&| @73
+| +0#0000000&@56|1|9|,|5| @9|B|o|t| 
diff --git a/runtime/syntax/testdir/dumps/c_preprocessor_error_00.dump b/runtime/syntax/testdir/dumps/c_preprocessor_error_00.dump
new file mode 100644
index 0000000..b178efe
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/c_preprocessor_error_00.dump
@@ -0,0 +1,20 @@
+>/+0#0000e05#ffffff0@1| |C| |p|r|e|p|r|o|c|e|s@1|o|r| |-| |d|i|a|g|n|o|s|t|i|c| |d|i|r|e|c|t|i|v|e|s| +0#0000000&@33
+@75
+|/+0#0000e05&@1| |S|o|u|r|c|e|:| |h|t@1|p|s|:|/@1|e|n|.|c|p@1|r|e|f|e|r|e|n|c|e|.|c|o|m|/|w|/|c|/|p|r|e|p|r|o|c|e|s@1|o|r|/|e|r@1|o|r| +0#0000000&@13
+@75
+|#+0#e000e06&|i|f| |_@1|S|T|D|C|_@1| |!|=| |1+0#e000002&| +0#0000000&@57
+|#+0#e000e06&| @1|e|r@1|o|r| |"+0#e000002&|N|o|t| |a| |s|t|a|n|d|a|r|d| |c|o|m|p|l|i|a|n|t| |c|o|m|p|i|l|e|r|"| +0#0000000&@30
+|#+0#e000e06&|e|n|d|i|f| +0#0000000&@68
+@75
+|#+0#e000e06&|i|f| |_@1|S|T|D|C|_|V|E|R|S|I|O|N|_@1| |>|=| |2+0#e000002&|0|2|3|1@1|L| +0#0000000&@43
+|#+0#e000e06&| @1|w|a|r|n|i|n|g| |"+0#e000002&|U|s|i|n|g| |#|w|a|r|n|i|n|g| |a|s| |a| |s|t|a|n|d|a|r|d| |f|e|a|t|u|r|e|"| +0#0000000&@25
+|#+0#e000e06&|e|n|d|i|f| +0#0000000&@68
+@75
+|#+0#e000e06&|i|n|c|l|u|d|e| |<+0#e000002&|s|t|d|i|o|.|h|>| +0#0000000&@56
+@75
+|i+0#00e0003&|n|t| +0#0000000&|m|a|i|n| |(|v+0#00e0003&|o|i|d|)+0#0000000&| @59
+|{| @73
+@4|p|r|i|n|t|f|(|"+0#e000002&|T|h|e| |c|o|m|p|i|l|e|r| |u|s|e|d| |c|o|n|f|o|r|m|s| |t|o| |t|h|e| |I|S|O| |C| |S|t|a|n|d|a|r|d| |!@1|"|)+0#0000000&|;| @8
+|}| @73
+@75
+@57|1|,|1| @10|A|l@1| 
diff --git a/runtime/syntax/testdir/dumps/c_string_literal_00.dump b/runtime/syntax/testdir/dumps/c_string_literal_00.dump
new file mode 100644
index 0000000..65f222d
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/c_string_literal_00.dump
@@ -0,0 +1,20 @@
+>/+0#0000e05#ffffff0@1| |C| |s|t|r|i|n|g| |l|i|t|e|r|a|l|s| +0#0000000&@54
+@75
+|/+0#0000e05&@1| |S|o|u|r|c|e|:| |h|t@1|p|s|:|/@1|e|n|.|c|p@1|r|e|f|e|r|e|n|c|e|.|c|o|m|/|w|/|c|/|l|a|n|g|u|a|g|e|/|s|t|r|i|n|g|_|l|i|t|e|r|a|l| +0#0000000&@8
+@75
+|#+0#e000e06&|i|n|c|l|u|d|e| |<+0#e000002&|i|n|t@1|y|p|e|s|.|h|>| +0#0000000&@53
+|#+0#e000e06&|i|n|c|l|u|d|e| |<+0#e000002&|l|o|c|a|l|e|.|h|>| +0#0000000&@55
+|#+0#e000e06&|i|n|c|l|u|d|e| |<+0#e000002&|s|t|d@1|e|f|.|h|>| +0#0000000&@55
+|#+0#e000e06&|i|n|c|l|u|d|e| |<+0#e000002&|s|t|d|i|o|.|h|>| +0#0000000&@56
+|#+0#e000e06&|i|n|c|l|u|d|e| |<+0#e000002&|s|t|d|l|i|b|.|h|>| +0#0000000&@55
+|#+0#e000e06&|i|n|c|l|u|d|e| |<+0#e000002&|u|c|h|a|r|.|h|>| +0#0000000&@56
+@75
+|i+0#00e0003&|n|t| +0#0000000&|m|a|i|n|(|v+0#00e0003&|o|i|d|)+0#0000000&| @60
+|{| @73
+@4|c+0#00e0003&|h|a|r| +0#0000000&|s|1|[|]| |=| |"+0#e000002&|a|猫*&|🍌|"+&|;+0#0000000&| |/+0#0000e05&@1| |o|r| |"|a|\|u|7|3|2|B|\|U|0@2|1|F|3|4|C|"| +0#0000000&@24
+|#+0#e000e06&|i|f| |_@1|S|T|D|C|_|V|E|R|S|I|O|N|_@1| |>|=| |2+0#e000002&|0|2|3|1@1|L| +0#0000000&@43
+@4|c+0#00e0003&|h|a|r|8|_|t| +0#0000000&@63
+|#+0#e000e06&|e|l|s|e| +0#0000000&@69
+@4|c+0#00e0003&|h|a|r| +0#0000000&@66
+|#+0#e000e06&|e|n|d|i|f| +0#0000000&@68
+@57|1|,|1| @10|T|o|p| 
diff --git a/runtime/syntax/testdir/dumps/c_string_literal_01.dump b/runtime/syntax/testdir/dumps/c_string_literal_01.dump
new file mode 100644
index 0000000..a2c5a46
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/c_string_literal_01.dump
@@ -0,0 +1,20 @@
+| +0&#ffffff0@3|c+0#00e0003&|h|a|r| +0#0000000&|s|1|[|]| |=| |"+0#e000002&|a|猫*&|🍌|"+&|;+0#0000000&| |/+0#0000e05&@1| |o|r| |"|a|\|u|7|3|2|B|\|U|0@2|1|F|3|4|C|"| +0#0000000&@24
+|#+0#e000e06&|i|f| |_@1|S|T|D|C|_|V|E|R|S|I|O|N|_@1| |>|=| |2+0#e000002&|0|2|3|1@1|L| +0#0000000&@43
+@4|c+0#00e0003&|h|a|r|8|_|t| +0#0000000&@63
+|#+0#e000e06&|e|l|s|e| +0#0000000&@69
+@4|c+0#00e0003&|h|a|r| +0#0000000&@66
+>#+0#e000e06&|e|n|d|i|f| +0#0000000&@68
+@4|s|2|[|]| |=| |u+0#e000002&|8|"|a|猫*&|🍌|"+&|;+0#0000000&| @53
+@4|c+0#00e0003&|h|a|r|1|6|_|t| +0#0000000&|s|3|[|]| |=| |u+0#e000002&|"|a|猫*&|🍌|"+&|;+0#0000000&| @45
+@4|c+0#00e0003&|h|a|r|3|2|_|t| +0#0000000&|s|4|[|]| |=| |U+0#e000002&|"|a|猫*&|🍌|"+&|;+0#0000000&| @45
+@4|w+0#00e0003&|c|h|a|r|_|t| +0#0000000&|s|5|[|]| |=| |L+0#e000002&|"|a|猫*&|🍌|"+&|;+0#0000000&| @46
+@75
+@4|s|e|t|l|o|c|a|l|e|(|L+0#e000002&|C|_|A|L@1|,+0#0000000&| |"+0#e000002&|e|n|_|U|S|.|u|t|f|8|"|)+0#0000000&|;| @38
+@4|p|r|i|n|t|f|(|"+0#e000002&| @1|\+0#e000e06&|"|%|s|\|"| +0#e000002&|i|s| |a| |c|h|a|r|[|%+0#e000e06&|z|u|]+0#e000002&| |h|o|l|d|i|n|g| @4|{| |"|,+0#0000000&| |s|1|,| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|s|1| |/| |s+0#af5f00255&|i|z|e|o|f
+| +0#0000000&|*|s|1|)|;| @68
+@4|f+0#af5f00255&|o|r|(+0#0000000&|s+0#00e0003&|i|z|e|_|t| +0#0000000&|n| |=| |0+0#e000002&|;+0#0000000&| |n| |<| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|s|1| |/| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|*|s|1|;| |+@1|n|)| @20
+@8|p|r|i|n|t|f|(|"+0#e000002&|0|x|%+0#e000e06&|0|2|X| +0#e000002&|"|,+0#0000000&| |+|(|u+0#00e0003&|n|s|i|g|n|e|d| +0#0000000&|c+0#00e0003&|h|a|r|)+0#0000000&|s|1|[|n|]|)|;| @25
+@4|p|u|t|s|(|"+0#e000002&|}|"|)+0#0000000&|;| @60
+@4|p|r|i|n|t|f|(| @63
+|#+0#e000e06&|i|f| |_@1|S|T|D|C|_|V|E|R|S|I|O|N|_@1| |>|=| |2+0#e000002&|0|2|3|1@1|L| +0#0000000&@43
+@57|1|9|,|1| @9|3@1|%| 
diff --git a/runtime/syntax/testdir/dumps/c_string_literal_02.dump b/runtime/syntax/testdir/dumps/c_string_literal_02.dump
new file mode 100644
index 0000000..a038a36
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/c_string_literal_02.dump
@@ -0,0 +1,20 @@
+|#+0#e000e06#ffffff0|i|f| |_@1|S|T|D|C|_|V|E|R|S|I|O|N|_@1| |>|=| |2+0#e000002&|0|2|3|1@1|L| +0#0000000&@43
+@4|"+0#e000002&|u|8|\+0#e000e06&|"|%|s|\|"| +0#e000002&|i|s| |a| |c|h|a|r|8|_|t|[|%+0#e000e06&|z|u|]+0#e000002&| |h|o|l|d|i|n|g| @1|{| |"| +0#0000000&@30
+|#+0#e000e06&|e|l|s|e| +0#0000000&@69
+@4|"+0#e000002&|u|8|\+0#e000e06&|"|%|s|\|"| +0#e000002&|i|s| |a| |c|h|a|r|[|%+0#e000e06&|z|u|]+0#e000002&| |h|o|l|d|i|n|g| @4|{| |"| +0#0000000&@30
+|#+0#e000e06&|e|n|d|i|f| +0#0000000&@68
+>,| |s|2|,| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|s|2| |/| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|*|s|2|)|;| @44
+@4|f+0#af5f00255&|o|r|(+0#0000000&|s+0#00e0003&|i|z|e|_|t| +0#0000000&|n| |=| |0+0#e000002&|;+0#0000000&| |n| |<| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|s|2| |/| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|*|s|2|;| |+@1|n|)| @20
+|#+0#e000e06&|i|f| |_@1|S|T|D|C|_|V|E|R|S|I|O|N|_@1| |>|=| |2+0#e000002&|0|2|3|1@1|L| +0#0000000&@43
+@7|p|r|i|n|t|f|(|"+0#e000002&|0|x|%+0#e000e06&|0|2|X| +0#e000002&|"|,+0#0000000&| |s|2|[|n|]|)|;| @42
+|#+0#e000e06&|e|l|s|e| +0#0000000&@69
+@7|p|r|i|n|t|f|(|"+0#e000002&|0|x|%+0#e000e06&|0|2|X| +0#e000002&|"|,+0#0000000&| |+|(|u+0#00e0003&|n|s|i|g|n|e|d| +0#0000000&|c+0#00e0003&|h|a|r|)+0#0000000&|s|2|[|n|]|)|;| @26
+|#+0#e000e06&|e|n|d|i|f| +0#0000000&@68
+@4|p|u|t|s|(|"+0#e000002&|}|"|)+0#0000000&|;| @60
+@4|p|r|i|n|t|f|(|"+0#e000002&| |u|\+0#e000e06&|"|a+0#e000002&|猫*&|🍌|\+0#e000e06&|"| +0#e000002&|i|s| |a| |c|h|a|r|1|6|_|t|[|%+0#e000e06&|z|u|]+0#e000002&| |h|o|l|d|i|n|g| |{| |"|,+0#0000000&| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|s|3| |/| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&
+|*|s|3|)|;| @69
+@4|f+0#af5f00255&|o|r|(+0#0000000&|s+0#00e0003&|i|z|e|_|t| +0#0000000&|n| |=| |0+0#e000002&|;+0#0000000&| |n| |<| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|s|3| |/| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|*|s|3|;| |+@1|n|)| @20
+@7|p|r|i|n|t|f|(|"+0#e000002&|0|x|%|0|4|"| +0#0000000&|P|R|I|X|L|E|A|S|T|1|6|"+0#e000002&| |"|,+0#0000000&| |s|3|[|n|]|)|;| @29
+@4|p|u|t|s|(|"+0#e000002&|}|"|)+0#0000000&|;| @60
+@4|p|r|i|n|t|f|(|"+0#e000002&| |U|\+0#e000e06&|"|a+0#e000002&|猫*&|🍌|\+0#e000e06&|"| +0#e000002&|i|s| |a| |c|h|a|r|3|2|_|t|[|%+0#e000e06&|z|u|]+0#e000002&| |h|o|l|d|i|n|g| |{| |"|,+0#0000000&| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|s|4| |/| |s+0#af5f00255&|i|z|e|@+0#4040ff13&@2
+| +0#0000000&@56|3|6|,|1| @9|7|5|%| 
diff --git a/runtime/syntax/testdir/dumps/c_string_literal_03.dump b/runtime/syntax/testdir/dumps/c_string_literal_03.dump
new file mode 100644
index 0000000..0817967
--- /dev/null
+++ b/runtime/syntax/testdir/dumps/c_string_literal_03.dump
@@ -0,0 +1,20 @@
+| +0&#ffffff0@3|p|r|i|n|t|f|(|"+0#e000002&| |U|\+0#e000e06&|"|a+0#e000002&|猫*&|🍌|\+0#e000e06&|"| +0#e000002&|i|s| |a| |c|h|a|r|3|2|_|t|[|%+0#e000e06&|z|u|]+0#e000002&| |h|o|l|d|i|n|g| |{| |"|,+0#0000000&| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|s|4| |/| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&
+|*|s|4|)|;| @69
+@4|f+0#af5f00255&|o|r|(+0#0000000&|s+0#00e0003&|i|z|e|_|t| +0#0000000&|n| |=| |0+0#e000002&|;+0#0000000&| |n| |<| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|s|4| |/| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|*|s|4|;| |+@1|n|)| @20
+@7|p|r|i|n|t|f|(|"+0#e000002&|0|x|%|0|8|"| +0#0000000&|P|R|I|X|L|E|A|S|T|3|2|"+0#e000002&| |"|,+0#0000000&| |s|4|[|n|]|)|;| @29
+@4|p|u|t|s|(|"+0#e000002&|}|"|)+0#0000000&|;| @60
+@4>p|r|i|n|t|f|(|"+0#e000002&| |L|\+0#e000e06&|"|%|l|s|\|"| +0#e000002&|i|s| |a| |w|c|h|a|r|_|t|[|%+0#e000e06&|z|u|]+0#e000002&| |h|o|l|d|i|n|g| @1|{| |"|,+0#0000000&| |s|5|,| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|s|5| |/| |s+0#af5f00255&|i|z|e|o
+|f| +0#0000000&|*|s|5|)|;| @67
+@4|f+0#af5f00255&|o|r|(+0#0000000&|s+0#00e0003&|i|z|e|_|t| +0#0000000&|n| |=| |0+0#e000002&|;+0#0000000&| |n| |<| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|s|5| |/| |s+0#af5f00255&|i|z|e|o|f| +0#0000000&|*|s|5|;| |+@1|n|)| @20
+@7|p|r|i|n|t|f|(|"+0#e000002&|0|x|%+0#e000e06&|0|8|X| +0#e000002&|"|,+0#0000000&| |(|u+0#00e0003&|n|s|i|g|n|e|d|)+0#0000000&|s|5|[|n|]|)|;| @32
+@4|p|u|t|s|(|"+0#e000002&|}|"|)+0#0000000&|;| @60
+|}| @73
+@75
+|~+0#4040ff13&| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+|~| @73
+| +0#0000000&@56|5|2|,|5| @9|B|o|t|