# HG changeset patch
# User John W. Eaton <jwe@octave.org>
# Date 1470123602 14400
# Node ID af0dca907fae8ff2cc2aa6e3bb5a770559859b48
# Parent  f6181638f6c57aadb980c363316e902a9faadee1
get help text for operators and keywords from docstrings file

* help.cc (map_type, pair_type, map_iter): Delete typedefs.
(size, names, raw_help_from_map): Delete functions.
(operators, keywords): Now simple list of strings.  Store only name,
not help text.
(operators_map, keywords_map): Delete.
(operator_names): New variable.
(keyword_names): Simplify definition.
(raw_help): Don't call raw_help_from_map to search for help text for
operators or keywords.
(F__operators__, F__keywords__): Simplify using operator_names and
keyword_names.

diff -r f6181638f6c5 -r af0dca907fae libinterp/corefcn/help.cc
--- a/libinterp/corefcn/help.cc	Tue Aug 02 03:10:51 2016 -0400
+++ b/libinterp/corefcn/help.cc	Tue Aug 02 03:40:02 2016 -0400
@@ -92,710 +92,97 @@
 // functions.
 static bool Vsuppress_verbose_help_message = false;
 
-#include <map>
-
-typedef std::map<std::string, std::string> map_type;
-typedef map_type::value_type pair_type;
-typedef map_type::const_iterator map_iter;
-
-template <typename T, size_t z>
-size_t
-size (T const (&)[z])
-{
-  return z;
-}
-
-// FIXME: the doc strings for operators and keywords is currently
-// duplicated in op-kw-docs.  We should arrange for Octave to read the
-// info from that file (or the generated DOCSTRINGS file) at startup
-// instead and remove the data from this file.
-
-const static pair_type operators[] =
+const static char * const operators[] =
 {
-  pair_type ("!",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} !\n\
-Logical 'not' operator.\n\
-@seealso{~, not}\n\
-@end deftypefn"),
-
-  pair_type ("~",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} ~\n\
-Logical 'not' operator.\n\
-@seealso{!, not}\n\
-@end deftypefn"),
-
-  pair_type ("!=",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} !=\n\
-Logical 'not equals' operator.\n\
-@seealso{~=, ne}\n\
-@end deftypefn"),
-
-  pair_type ("~=",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} ~=\n\
-Logical 'not equals' operator.\n\
-@seealso{!=, ne}\n\
-@end deftypefn"),
-
-  pair_type ("\"",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} \"\n\
-String delimiter.\n\
-@end deftypefn"),
-
-  pair_type ("#",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} #\n\
-Begin comment character.\n\
-@seealso{%, #@\\{}\n\
-@end deftypefn"),
-
-  pair_type ("%",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} %\n\
-Begin comment character.\n\
-@seealso{#, %@\\{}\n\
-@end deftypefn"),
-
-  pair_type ("#{",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} #@{\n\
-Begin block comment.  There must be nothing else, other than\n\
-whitespace, in the line both before and after @code{#@{}.\n\
-It is possible to nest block comments.\n\
-@seealso{%@\\{, #@\\}, #}\n\
-@end deftypefn"),
-
-  pair_type ("%{",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} %@{\n\
-Begin block comment.  There must be nothing else, other than\n\
-whitespace, in the line both before and after @code{%@{}.\n\
-It is possible to nest block comments.\n\
-@seealso{#@\\{, %@\\}, %}\n\
-@end deftypefn"),
-
-  pair_type ("#}",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} #@}\n\
-Close block comment.  There must be nothing else, other than\n\
-whitespace, in the line both before and after @code{#@}}.\n\
-It is possible to nest block comments.\n\
-@seealso{%@\\}, #@\\{, #}\n\
-@end deftypefn"),
-
-  pair_type ("%}",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} %@}\n\
-Close block comment.  There must be nothing else, other than\n\
-whitespace, in the line both before and after @code{%@}}.\n\
-It is possible to nest block comments.\n\
-@seealso{#@\\}, %@\\{, %}\n\
-@end deftypefn"),
-
-  pair_type ("...",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} ...\n\
-Continuation marker.  Joins current line with following line.\n\
-@end deftypefn"),
-
-  pair_type ("&",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} &\n\
-Element by element logical 'and' operator.\n\
-@seealso{&&, and}\n\
-@end deftypefn"),
-
-  pair_type ("&&",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} &&\n\
-Logical 'and' operator (with short-circuit evaluation).\n\
-@seealso{&, and}\n\
-@end deftypefn"),
-
-  pair_type ("'",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} '\n\
-Matrix transpose operator.  For complex matrices, computes the\n\
-complex conjugate (Hermitian) transpose.\n\
-\n\
-The single quote character may also be used to delimit strings, but\n\
-it is better to use the double quote character, since that is never\n\
-ambiguous.\n\
-@seealso{.', transpose}\n\
-@end deftypefn"),
-
-  pair_type ("(",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} (\n\
-Array index or function argument delimiter.\n\
-@end deftypefn"),
-
-  pair_type (")",
-  "-*- texinfo -*-\n\
-@deftypefn {} {})\n\
-Array index or function argument delimiter.\n\
-@end deftypefn"),
-
-  pair_type ("*",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} *\n\
-Multiplication operator.\n\
-@seealso{.*, times}\n\
-@end deftypefn"),
-
-  pair_type ("**",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} **\n\
-Power operator.  This may return complex results for real inputs.  Use\n\
-@code{realsqrt}, @code{cbrt}, @code{nthroot}, or @code{realroot} to obtain\n\
-real results when possible.\n\
-@seealso{power, ^, .**, .^, realpow, realsqrt, cbrt, nthroot}\n\
-@end deftypefn"),
-
-  pair_type ("^",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} ^\n\
-Power operator.  This may return complex results for real inputs.  Use\n\
-@code{realsqrt}, @code{cbrt}, @code{nthroot}, or @code{realroot} to obtain\n\
-real results when possible.\n\
-@seealso{power, **, .^, .**, realpow, realsqrt, cbrt, nthroot}\n\
-@end deftypefn"),
-
-  pair_type ("+",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} +\n\
-Addition operator.\n\
-@seealso{plus}\n\
-@end deftypefn"),
-
-  pair_type ("++",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} ++\n\
-Increment operator.  As in C, may be applied as a prefix or postfix\n\
-operator.\n\
-@seealso{--}\n\
-@end deftypefn"),
-
-  pair_type (",",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} ,\n\
-Array index, function argument, or command separator.\n\
-@end deftypefn"),
-
-  pair_type ("-",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} -\n\
-Subtraction or unary negation operator.\n\
-@seealso{minus}\n\
-@end deftypefn"),
-
-  pair_type ("--",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} --\n\
-Decrement operator.  As in C, may be applied as a prefix or postfix\n\
-operator.\n\
-@seealso{++}\n\
-@end deftypefn"),
-
-  pair_type (".'",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} .'\n\
-Matrix transpose operator.  For complex matrices, computes the\n\
-transpose, @emph{not} the complex conjugate transpose.\n\
-@seealso{', transpose}\n\
-@end deftypefn"),
-
-  pair_type (".*",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} .*\n\
-Element by element multiplication operator.\n\
-@seealso{*, times}\n\
-@end deftypefn"),
-
-  pair_type (".**",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} .*\n\
-Element by element power operator.  If several complex results are possible,\n\
-returns the one with smallest non-negative argument (angle).  Use\n\
-@code{realpow}, @code{realsqrt}, @code{cbrt}, or @code{nthroot} if a\n\
-real result is preferred.\n\
-@seealso{**, ^, .^, power, realpow, realsqrt, cbrt, nthroot}\n\
-@end deftypefn"),
-
-  pair_type (".^",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} .^\n\
-Element by element power operator.  If several complex results are possible,\n\
-returns the one with smallest non-negative argument (angle).  Use\n\
-@code{realpow}, @code{realsqrt}, @code{cbrt}, or @code{nthroot} if a\n\
-real result is preferred.\n\
-@seealso{.**, ^, **, power, realpow, realsqrt, cbrt, nthroot}\n\
-@end deftypefn"),
-
-  pair_type ("./",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} ./\n\
-Element by element right division operator.\n\
-@seealso{/, .\\, rdivide, mrdivide}\n\
-@end deftypefn"),
-
-  pair_type ("/",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} /\n\
-Right division operator.\n\
-@seealso{./, \\, rdivide, mrdivide}\n\
-@end deftypefn"),
-
-  pair_type (".\\",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} .\\\n\
-Element by element left division operator.\n\
-@seealso{\\, ./, rdivide, mrdivide}\n\
-@end deftypefn"),
-
-  pair_type ("\\",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} \\\n\
-Left division operator.\n\
-@seealso{.\\, /, ldivide, mldivide}\n\
-@end deftypefn"),
-
-  pair_type (":",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} :\n\
-Select entire rows or columns of matrices.\n\
-@end deftypefn"),
-
-  pair_type (";",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} ;\n\
-Array row or command separator.\n\
-@seealso{,}\n\
-@end deftypefn"),
-
-  pair_type ("<",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} <\n\
-'Less than' operator.\n\
-@seealso{lt}\n\
-@end deftypefn"),
-
-  pair_type ("<=",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} <=\n\
-'Less than' or 'equals' operator.\n\
-@seealso{le}\n\
-@end deftypefn"),
-
-  pair_type ("=",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} =\n\
-Assignment operator.\n\
-@end deftypefn"),
-
-  pair_type ("==",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} ==\n\
-Equality test operator.\n\
-@seealso{eq}\n\
-@end deftypefn"),
-
-  pair_type (">",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} >\n\
-'Greater than' operator.\n\
-@seealso{gt}\n\
-@end deftypefn"),
-
-  pair_type (">=",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} >=\n\
-'Greater than' or 'equals' operator.\n\
-@seealso{ge}\n\
-@end deftypefn"),
-
-  pair_type ("[",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} [\n\
-Return list delimiter.\n\
-@seealso{]}\n\
-@end deftypefn"),
-
-  pair_type ("]",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} ]\n\
-Return list delimiter.\n\
-@seealso{[}\n\
-@end deftypefn"),
-
-  pair_type ("|",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} |\n\
-Element by element logical 'or' operator.\n\
-@seealso{||, or}\n\
-@end deftypefn"),
-
-  pair_type ("||",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} ||\n\
-Logical 'or' (with short-circuit evaluation) operator.\n\
-@seealso{|, or}\n\
-@end deftypefn"),
+  "!",
+  "~",
+  "!=",
+  "~=",
+  "\"",
+  "#",
+  "%",
+  "#{",
+  "%{",
+  "#}",
+  "%}",
+  "...",
+  "&",
+  "&&",
+  "'",
+  "(",
+  ")",
+  "*",
+  "**",
+  "^",
+  "+",
+  "++",
+  ",",
+  "-",
+  "--",
+  ".'",
+  ".*",
+  ".**",
+  ".^",
+  "./",
+  "/",
+  ".\\",
+  "\\",
+  ":",
+  ";",
+  "<",
+  "<=",
+  "=",
+  "==",
+  ">",
+  ">=",
+  "[",
+  "]",
+  "|",
+  "||",
+  0
 };
 
-const static pair_type keywords[] =
-{
-  pair_type ("break",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} break\n\
-Exit the innermost enclosing do, while or for loop.\n\
-@seealso{do, while, for, parfor, continue}\n\
-@end deftypefn"),
-
-  pair_type ("case",
-  "-*- texinfo -*-\n\
-@deftypefn  {} {} case @var{value}\n\
-@deftypefnx {} {} case @{@var{value}, @dots{}@}\n\
-A case statement in a switch.  Octave cases are exclusive and do not\n\
-fall-through as do C-language cases.  A switch statement must have at least\n\
-one case.  See @code{switch} for an example.\n\
-@seealso{switch}\n\
-@end deftypefn"),
-
-  pair_type ("catch",
-  "-*- texinfo -*-\n\
-@deftypefn  {} {} catch\n\
-@deftypefnx {} {} catch @var{value}\n\
-Begin the cleanup part of a try-catch block.\n\
-@seealso{try}\n\
-@end deftypefn"),
-
-  pair_type ("continue",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} continue\n\
-Jump to the end of the innermost enclosing do, while or for loop.\n\
-@seealso{do, while, for, parfor, break}\n\
-@end deftypefn"),
-
-  pair_type ("do",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} do\n\
-Begin a do-until loop.  This differs from a do-while loop in that the\n\
-body of the loop is executed at least once.\n\
-\n\
-@example\n\
-@group\n\
-i = 0;\n\
-do\n\
-  i++\n\
-until (i == 10)\n\
-@end group\n\
-@end example\n\
-@seealso{for, until, while}\n\
-@end deftypefn"),
-
-  pair_type ("else",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} else\n\
-Alternate action for an if block.  See @code{if} for an example.\n\
-@seealso{if}\n\
-@end deftypefn"),
-
-  pair_type ("elseif",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} elseif (@var{condition})\n\
-Alternate conditional test for an if block.  See @code{if} for an example.\n\
-@seealso{if}\n\
-@end deftypefn"),
-
-  pair_type ("end",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} end\n\
-Mark the end of any @code{for}, @code{parfor}, @code{if}, @code{do},\n\
-@code{while}, @code{function}, @code{switch}, @code{try}, or\n\
-@code{unwind_protect} block.\n\
-@seealso{for, parfor, if, do, while, function, switch, try, unwind_protect}\n\
-@end deftypefn"),
-
-  pair_type ("end_try_catch",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} end_try_catch\n\
-Mark the end of an @code{try-catch} block.\n\
-@seealso{try, catch}\n\
-@end deftypefn"),
-
-  pair_type ("end_unwind_protect",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} end_unwind_protect\n\
-Mark the end of an unwind_protect block.\n\
-@seealso{unwind_protect}\n\
-@end deftypefn"),
-
-  pair_type ("endfor",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} endfor\n\
-Mark the end of a for loop.  See @code{for} for an example.\n\
-@seealso{for}\n\
-@end deftypefn"),
-
-  pair_type ("endfunction",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} endfunction\n\
-Mark the end of a function.\n\
-@seealso{function}\n\
-@end deftypefn"),
-
-  pair_type ("endif",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} endif\n\
-Mark the end of an if block.  See @code{if} for an example.\n\
-@seealso{if}\n\
-@end deftypefn"),
-
-  pair_type ("endparfor",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} endparfor\n\
-Mark the end of a parfor loop.  See @code{parfor} for an example.\n\
-@seealso{parfor}\n\
-@end deftypefn"),
-
-  pair_type ("endswitch",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} endswitch\n\
-Mark the end of a switch block.  See @code{switch} for an example.\n\
-@seealso{switch}\n\
-@end deftypefn"),
-
-  pair_type ("endwhile",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} endwhile\n\
-Mark the end of a while loop.  See @code{while} for an example.\n\
-@seealso{do, while}\n\
-@end deftypefn"),
-
-  pair_type ("for",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} for @var{i} = @var{range}\n\
-Begin a for loop.\n\
-\n\
-@example\n\
-@group\n\
-for i = 1:10\n\
-  i\n\
-endfor\n\
-@end group\n\
-@end example\n\
-@seealso{do, parfor, while}\n\
-@end deftypefn"),
-
-  pair_type ("function",
-  "-*- texinfo -*-\n\
-@deftypefn  {} {} function @var{outputs} = function (@var{input}, @dots{})\n\
-@deftypefnx {} {} function {} function (@var{input}, @dots{})\n\
-@deftypefnx {} {} function @var{outputs} = function\n\
-Begin a function body with @var{outputs} as results and @var{inputs} as\n\
-parameters.\n\
-@seealso{return}\n\
-@end deftypefn"),
+const static string_vector operator_names (operators);
 
-  pair_type ("global",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} global @var{var}\n\
-Declare variables to have global scope.\n\
-\n\
-@example\n\
-@group\n\
-global @var{x};\n\
-if (isempty (@var{x}))\n\
-  x = 1;\n\
-endif\n\
-@end group\n\
-@end example\n\
-@seealso{persistent}\n\
-@end deftypefn"),
-
-  pair_type ("if",
-  "-*- texinfo -*-\n\
-@deftypefn  {} {} if (@var{cond}) @dots{} endif\n\
-@deftypefnx {} {} if (@var{cond}) @dots{} else @dots{} endif\n\
-@deftypefnx {} {} if (@var{cond}) @dots{} elseif (@var{cond}) @dots{} endif\n\
-@deftypefnx {} {} if (@var{cond}) @dots{} elseif (@var{cond}) @dots{} else @dots{} endif\n\
-Begin an if block.\n\
-\n\
-@example\n\
-@group\n\
-x = 1;\n\
-if (x == 1)\n\
-  disp (\"one\");\n\
-elseif (x == 2)\n\
-  disp (\"two\");\n\
-else\n\
-  disp (\"not one or two\");\n\
-endif\n\
-@end group\n\
-@end example\n\
-@seealso{switch}\n\
-@end deftypefn"),
-
-  pair_type ("otherwise",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} otherwise\n\
-The default statement in a switch block (similar to else in an if block).\n\
-@seealso{switch}\n\
-@end deftypefn"),
-
-  pair_type ("parfor",
-  "-*- texinfo -*-\n\
-@deftypefn  {} {} parfor @var{i} = @var{range}\n\
-@deftypefnx {} {} parfor (@var{i} = @var{range}, @var{maxproc})\n\
-Begin a for loop that may execute in parallel.\n\
-\n\
-@example\n\
-@group\n\
-parfor i = 1:10\n\
-  i\n\
-endparfor\n\
-@end group\n\
-@end example\n\
-@seealso{for, do, while}\n\
-@end deftypefn"),
-
-  pair_type ("persistent",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} persistent @var{var}\n\
-Declare variables as persistent.  A variable that has been declared\n\
-persistent within a function will retain its contents in memory between\n\
-subsequent calls to the same function.  The difference between persistent\n\
-variables and global variables is that persistent variables are local in\n\
-scope to a particular function and are not visible elsewhere.\n\
-@seealso{global}\n\
-@end deftypefn"),
-
-  pair_type ("return",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} return\n\
-Return from a function.\n\
-@seealso{function}\n\
-@end deftypefn"),
-
-  pair_type ("static",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} static\n\
-This statement has been deprecated in favor of @code{persistent}.\n\
-@seealso{persistent}\n\
-@end deftypefn"),
-
-  pair_type ("switch",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} switch @var{statement}\n\
-Begin a switch block.\n\
-\n\
-@example\n\
-@group\n\
-yesno = \"yes\"\n\
-\n\
-switch yesno\n\
-  case @{\"Yes\" \"yes\" \"YES\" \"y\" \"Y\"@}\n\
-    value = 1;\n\
-  case @{\"No\" \"no\" \"NO\" \"n\" \"N\"@}\n\
-    value = 0;\n\
-  otherwise\n\
-    error (\"invalid value\");\n\
-endswitch\n\
-@end group\n\
-@end example\n\
-@seealso{if, case, otherwise}\n\
-@end deftypefn"),
-
-  pair_type ("try",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} try\n\
-Begin a try-catch block.\n\
-\n\
-If an error occurs within a try block, then the catch code will be run and\n\
-execution will proceed after the catch block (though it is often\n\
-recommended to use the lasterr function to re-throw the error after cleanup\n\
-is completed).\n\
-@seealso{catch, unwind_protect}\n\
-@end deftypefn"),
-
-  pair_type ("until",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} until (@var{cond})\n\
-End a do-until loop.  See @code{do} for an example.\n\
-@seealso{do}\n\
-@end deftypefn"),
-
-  pair_type ("unwind_protect",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} unwind_protect\n\
-Begin an unwind_protect block.\n\
-\n\
-If an error occurs within the first part of an unwind_protect block\n\
-the commands within the unwind_protect_cleanup block are executed before\n\
-the error is thrown.  If an error is not thrown, then the\n\
-unwind_protect_cleanup block is still executed (in other words, the\n\
-unwind_protect_cleanup will be run with or without an error in the\n\
-unwind_protect block).\n\
-@seealso{unwind_protect_cleanup, try}\n\
-@end deftypefn"),
-
-  pair_type ("unwind_protect_cleanup",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} unwind_protect_cleanup\n\
-Begin the cleanup section of an unwind_protect block.\n\
-@seealso{unwind_protect}\n\
-@end deftypefn"),
-
-  pair_type ("varargin",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} varargin\n\
-Pass an arbitrary number of arguments into a function.\n\
-@seealso{varargout, nargin, isargout, nargout, nthargout}\n\
-@end deftypefn"),
-
-  pair_type ("varargout",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} varargout\n\
-Pass an arbitrary number of arguments out of a function.\n\
-@seealso{varargin, nargin, isargout, nargout, nthargout}\n\
-@end deftypefn"),
-
-  pair_type ("while",
-  "-*- texinfo -*-\n\
-@deftypefn {} {} while\n\
-Begin a while loop.\n\
-\n\
-@example\n\
-@group\n\
-i = 0;\n\
-while (i < 10)\n\
-  i++\n\
-endwhile\n\
-@end group\n\
-@end example\n\
-@seealso{do, endwhile, for, until}\n\
-@end deftypefn"),
+const static char * const keywords[] =
+{
+  "break",
+  "case",
+  "catch",
+  "continue",
+  "do",
+  "else",
+  "elseif",
+  "end",
+  "end_try_catch",
+  "end_unwind_protect",
+  "endfor",
+  "endfunction",
+  "endif",
+  "endparfor",
+  "endswitch",
+  "endwhile",
+  "for",
+  "function",
+  "global",
+  "if",
+  "otherwise",
+  "parfor",
+  "persistent",
+  "return",
+  "static",
+  "switch",
+  "try",
+  "until",
+  "unwind_protect",
+  "unwind_protect_cleanup",
+  "varargin",
+  "varargout",
+  "while",
+  0
 };
 
-// Return a copy of the operator or keyword names.
-static string_vector
-names (const map_type& lst)
-{
-  string_vector retval (lst.size ());
-  int j = 0;
-  for (map_iter iter = lst.begin (); iter != lst.end (); iter++)
-    retval[j++] = iter->first;
-  return retval;
-}
-
-const static map_type operators_map (operators, operators + size (operators));
-const static map_type keywords_map (keywords, keywords + size (keywords));
-const static string_vector keyword_names = names (keywords_map);
+const static string_vector keyword_names (keywords);
 
 // Return a vector of all functions from this file,
 // for use in command line auto-completion.
@@ -959,16 +346,6 @@
 }
 
 static bool
-raw_help_from_map (const std::string& nm, std::string& h,
-                   const map_type& map, bool& symbol_found)
-{
-  map_iter idx = map.find (nm);
-  symbol_found = (idx != map.end ());
-  h = (symbol_found) ? idx->second : "";
-  return symbol_found;
-}
-
-static bool
 raw_help_from_docstrings_file (const std::string& nm, std::string& h,
                                bool& symbol_found)
 {
@@ -1097,17 +474,7 @@
   found = raw_help_from_symbol_table (nm, h, w, symbol_found);
 
   if (! found)
-    {
-      found = raw_help_from_file (nm, h, f, symbol_found);
-
-      if (! found)
-        {
-          found = raw_help_from_map (nm, h, operators_map, symbol_found);
-
-          if (! found)
-            found = raw_help_from_map (nm, h, keywords_map, symbol_found);
-        }
-    }
+    found = raw_help_from_file (nm, h, f, symbol_found);
 
   if (! found || h == "external-doc")
     raw_help_from_docstrings_file (nm, h, symbol_found);
@@ -1258,7 +625,7 @@
 Undocumented internal function.
 @end deftypefn */)
 {
-  return ovl (Cell (names (operators_map)));
+  return ovl (Cell (operator_names));
 }
 
 // Return a cell array of strings containing the names of all
@@ -1270,7 +637,7 @@
 Undocumented internal function.
 @end deftypefn */)
 {
-  return ovl (Cell (names (keywords_map)));
+  return ovl (Cell (keyword_names));
 }
 
 // Return a cell array of strings containing the names of all builtin