Better indexing and misc. cleanup in the first tenth or so of the doc.

1 files changed, 12 insertions, 2 deletions

diff --git a/Doc/Zsh/arith.yo b/Doc/Zsh/arith.yo
index 4e6fa99f2..2f601057e 100644
--- a/Doc/Zsh/arith.yo
+++ b/Doc/Zsh/arith.yo
@@ -32,6 +32,7 @@ example(let "val = 2 + 1")
 both assigning the value 3 to the shell variable tt(foo) and returning a
 zero status.
 
+cindex(arithmetic base)
 cindex(bases, in arithmetic)
 Integers can be in bases other than 10.
 A leading `tt(0x)' or `tt(0X)' denotes hexadecimal.
@@ -65,6 +66,15 @@ have output base 16, while tt(x) (assuming it does not already exist) is
 implicitly typed by the arithmetic evaluation, where it acquires the output
 base 8.
 
+pindex(C_BASES, use of)
+pindex(OCTAL_ZEROES, use of)
+If the tt(C_BASES) option is set, hexadecimal numbers in the standard C
+format, for example tt(0xFF) instead of the usual `tt(16#FF)'.  If the
+option tt(OCTAL_ZEROES) is also set (it is not by default), octal numbers
+will be treated similarly and hence appear as `tt(077)' instead of
+`tt(8#77)'.  This option has no effect on the output of bases other than
+hexadecimal and octal, and these formats are always understood on input.
+
 When an output base is specified using the `tt([#)var(base)tt(])' syntax,
 an appropriate base prefix will be output if necessary, so that the value
 output is valid syntax for input.  If the tt(#) is doubled, for example
@@ -105,8 +115,8 @@ short-circuiting, and only one of the latter two expressions in a ternary
 operator is evaluated.  Note the precedence of the bitwise AND, OR,
 and XOR operators.
 
-cindex(math functions)
-cindex(functions, math)
+cindex(mathematical functions, use of)
+cindex(functions, math, use of)
 Mathematical functions can be called with the syntax
 `var(func)tt(LPAR())var(args)tt(RPAR())', where the function decides
 if the var(args) is used as a string or a comma-separated list of