\style{Customizing \FWEB's control codes}
ascii\_constant&(string)&Signify an \&{ASCII} constant. \<"'\\"">\cr
%begin\_bp&(string)&Don't issue a breakpoint command here. \<"\{">\cr
begin\_C&(string)&Switch into C~language. \<"cC">\cr
begin\_FORTRAN&(string)&Switch into \Fortran\ language. \<"nN">\cr
begin\_meta&(string)&Start a meta comment. \<"(">\cr
begin\_RATFOR&(string)&Switch into \Ratfor\ language. \<"rR">\cr
begin\_code&(string)&Start the unnamed module. \<"aA">\cr
big\_line\_break&(string)&A new line with some extra space. \<"\#">\cr
compiler\_directive&(string)&Signify a compiler directive. \<"!">\cr
defd\_at&(string)&Explicitly mark as defined. \<"[">\cr
definition&(string)&Define an outer macro. \<"dD">\cr
end\_meta&(string)&End a meta comment. \<")">\cr
force\_line&(string)&Force a new line. \<"\BS\BS">\cr
format&(string)&Format an identifier or module name. \<"fF">\cr
explicit\_reserved&(string)&Format as reserved (integer-like) word. \<"`">\cr
insert\_bp&(string)&When breakpointing is turned on, insert an explicit
	breakpoint instruction here. \<"\}bB">\cr
invisible\_cmnt&(string)&Comment ignored by both processors. \<"\%">\cr
join&(string)&Join two items together on output. \<"\amp">\cr
math\_break&(string)&Insert a math break. \<"|">\cr
module\_name&(string)&Begin a module name. \<"<">\cr
no\_line\_break&(string)&Cancel a line break here. \<"+">\cr
pseudo\_colon&(string)&A pseudo-colon. \<":">\cr
pseudo\_expr&(string)&A pseudo-expression. \<"e">\cr
pseudo\_semi&(string)&A pseudo-semicolon. \<";">\cr
switch\_math\_flag&(string)&Toggle the math flag. \<"\$">\cr
TeX\_string&(string)&Insert a \TeX\ string of commands. \<"tT">\cr
thin\_space&(string)&Insert a thin space. \<",">\cr
undefinition&(string)&Undefine an outer macro. \<"uU">\cr
underline&(string)&Underline the following entry in the index. \<"\_">\cr
verbatim&(string)&Send control text verbatim to output. \<"=">\cr
WEB\_definition&(string)&Define an inner or \WEB\ macro. \<"mM">\cr
xref\_roman&(string)&Typeset index entry in Roman type. \<"\^">\cr
xref\_typewriter&(string)&Typeset index entry in typewriter type. \<".">\cr
xref\_wildcard&(string)&Typeset index entry using the macro \.{\\9}. \<"9">\cr


