/usr.bin/yacc/yyfix.1

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  28. .\" @(#)yyfix.1 5.4 (Berkeley) 3/23/93
  29. .\" $FreeBSD$
  30. .\"
  31. .Dd March 23, 1993
  32. .Dt YYFIX 1
  33. .Os
  34. .Sh NAME
  35. .Nm yyfix
  36. .Nd extract tables from y.tab.c
  37. .Sh SYNOPSIS
  38. .Nm
  39. .Ar file
  40. .Op Ar tables
  41. .Sh DESCRIPTION
  42. Programs have historically used a script (often named
  43. .Dq :yyfix )
  44. to extract tables from the
  45. .Xr yacc 1
  46. generated file
  47. .Pa y.tab.c .
  48. As the names of the tables generated by the current version of
  49. .Xr yacc 1
  50. are different from those of historical versions of
  51. .Xr yacc 1 ,
  52. the shell script
  53. .Nm
  54. is provided to simplify the transition.
  55. .Pp
  56. The first (and required) argument to
  57. .Nm
  58. is the name of the file where the extracted tables should be stored.
  59. .Pp
  60. If further command line arguments are specified, they are taken as
  61. the list of tables to be extracted.
  62. Otherwise,
  63. .Nm
  64. attempts to determine if the
  65. .Pa y.tab.c
  66. file is from an old or new
  67. .Xr yacc 1 ,
  68. and extracts the appropriate tables.
  69. .Pp
  70. The tables
  71. .Dq yyexca ,
  72. .Dq yyact ,
  73. .Dq yypact ,
  74. .Dq yypgo ,
  75. .Dq yyr1 ,
  76. .Dq yyr2 ,
  77. .Dq yychk ,
  78. and
  79. .Dq yydef
  80. are extracted
  81. from historical versions of
  82. .Xr yacc 1 .
  83. .Pp
  84. The tables
  85. .Dq yylhs ,
  86. .Dq yylen ,
  87. .Dq yydefred ,
  88. .Dq yydgoto ,
  89. .Dq yysindex ,
  90. .Dq yyrindex ,
  91. .Dq yygindex ,
  92. .Dq yytable ,
  93. .Dq yyname ,
  94. .Dq yyrule ,
  95. and
  96. .Dq yycheck ,
  97. are extracted from the current version of
  98. .Xr yacc 1 .
  99. .Sh FILES
  100. .Bl -tag -width y.tab.c
  101. .It Pa y.tab.c
  102. File from which tables are extracted.
  103. .El
  104. .Sh SEE ALSO
  105. .Xr yacc 1
  106. .Sh HISTORY
  107. The
  108. .Nm
  109. command first appeared in
  110. .Bx 4.4 .