1 files changed, 55 insertions, 13 deletions
diff --git a/manuals/bc/EH.1 b/manuals/bc/EH.1
index f0f2b1274dad..5c556c049f14 100644
--- a/manuals/bc/EH.1
+++ b/manuals/bc/EH.1
@@ -25,7 +25,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.TH "BC" "1" "August 2022" "Gavin D. Howard" "General Commands Manual"
+.TH "BC" "1" "October 2022" "Gavin D. Howard" "General Commands Manual"
 .nh
 .ad l
 .SH NAME
@@ -633,6 +633,14 @@ This is a \f[B]non-portable extension\f[R].
 \f[B]abs(E)\f[R]: The absolute value of \f[B]E\f[R].
 This is a \f[B]non-portable extension\f[R].
 .IP " 9." 4
+\f[B]is_number(E)\f[R]: \f[B]1\f[R] if the given argument is a number,
+\f[B]0\f[R] if it is a string.
+This is a \f[B]non-portable extension\f[R].
+.IP "10." 4
+\f[B]is_string(E)\f[R]: \f[B]1\f[R] if the given argument is a string,
+\f[B]0\f[R] if it is a number.
+This is a \f[B]non-portable extension\f[R].
+.IP "11." 4
 \f[B]modexp(E, E, E)\f[R]: Modular exponentiation, where the first
 expression is the base, the second is the exponent, and the third is the
 modulus.
@@ -640,7 +648,7 @@ All three values must be integers.
 The second argument must be non-negative.
 The third argument must be non-zero.
 This is a \f[B]non-portable extension\f[R].
-.IP "10." 4
+.IP "12." 4
 \f[B]divmod(E, E, I[])\f[R]: Division and modulus in one operation.
 This is for optimization.
 The first expression is the dividend, and the second is the divisor,
@@ -648,13 +656,19 @@ which must be non-zero.
 The return value is the quotient, and the modulus is stored in index
 \f[B]0\f[R] of the provided array (the last argument).
 This is a \f[B]non-portable extension\f[R].
-.IP "11." 4
+.IP "13." 4
 \f[B]asciify(E)\f[R]: If \f[B]E\f[R] is a string, returns a string that
 is the first letter of its argument.
 If it is a number, calculates the number mod \f[B]256\f[R] and returns
 that number as a one-character string.
 This is a \f[B]non-portable extension\f[R].
-.IP "12." 4
+.IP "14." 4
+\f[B]asciify(I[])\f[R]: A string that is made up of the characters that
+would result from running \f[B]asciify(E)\f[R] on each element of the
+array identified by the argument.
+This allows creating multi-character strings and storing them.
+This is a \f[B]non-portable extension\f[R].
+.IP "15." 4
 \f[B]I()\f[R], \f[B]I(E)\f[R], \f[B]I(E, E)\f[R], and so on, where
 \f[B]I\f[R] is an identifier for a non-\f[B]void\f[R] function (see the
 \f[I]Void Functions\f[R] subsection of the \f[B]FUNCTIONS\f[R] section).
@@ -663,33 +677,33 @@ The \f[B]E\f[R] argument(s) may also be arrays of the form
 (see the \f[I]Array References\f[R] subsection of the
 \f[B]FUNCTIONS\f[R] section) if the corresponding parameter in the
 function definition is an array reference.
-.IP "13." 4
+.IP "16." 4
 \f[B]read()\f[R]: Reads a line from \f[B]stdin\f[R] and uses that as an
 expression.
 The result of that expression is the result of the \f[B]read()\f[R]
 operand.
 This is a \f[B]non-portable extension\f[R].
-.IP "14." 4
+.IP "17." 4
 \f[B]maxibase()\f[R]: The max allowable \f[B]ibase\f[R].
 This is a \f[B]non-portable extension\f[R].
-.IP "15." 4
+.IP "18." 4
 \f[B]maxobase()\f[R]: The max allowable \f[B]obase\f[R].
 This is a \f[B]non-portable extension\f[R].
-.IP "16." 4
+.IP "19." 4
 \f[B]maxscale()\f[R]: The max allowable \f[B]scale\f[R].
 This is a \f[B]non-portable extension\f[R].
-.IP "17." 4
+.IP "20." 4
 \f[B]line_length()\f[R]: The line length set with
 \f[B]BC_LINE_LENGTH\f[R] (see the \f[B]ENVIRONMENT VARIABLES\f[R]
 section).
 This is a \f[B]non-portable extension\f[R].
-.IP "18." 4
+.IP "21." 4
 \f[B]global_stacks()\f[R]: \f[B]0\f[R] if global stacks are not enabled
 with the \f[B]-g\f[R] or \f[B]--global-stacks\f[R] options, non-zero
 otherwise.
 See the \f[B]OPTIONS\f[R] section.
 This is a \f[B]non-portable extension\f[R].
-.IP "19." 4
+.IP "22." 4
 \f[B]leading_zero()\f[R]: \f[B]0\f[R] if leading zeroes are not enabled
 with the \f[B]-z\f[R] or \f[B]\[en]leading-zeroes\f[R] options, non-zero
 otherwise.
@@ -1026,6 +1040,25 @@ The \f[B]if\f[R] \f[B]else\f[R] statement does the same thing as in C.
 The \f[B]quit\f[R] statement causes bc(1) to quit, even if it is on a
 branch that will not be executed (it is a compile-time command).
 .PP
+\f[B]Warning\f[R]: The behavior of this bc(1) on \f[B]quit\f[R] is
+slightly different from other bc(1) implementations.
+Other bc(1) implementations will exit as soon as they finish parsing the
+line that a \f[B]quit\f[R] command is on.
+This bc(1) will execute any completed and executable statements that
+occur before the \f[B]quit\f[R] statement before exiting.
+.PP
+In other words, for the bc(1) code below:
+.IP
+.nf
+\f[C]
+for (i = 0; i < 3; ++i) i; quit
+\f[R]
+.fi
+.PP
+Other bc(1) implementations will print nothing, and this bc(1) will
+print \f[B]0\f[R], \f[B]1\f[R], and \f[B]2\f[R] on successive lines
+before exiting.
+.PP
 The \f[B]halt\f[R] statement causes bc(1) to quit, if it is executed.
 (Unlike \f[B]quit\f[R] if it is on a branch of an \f[B]if\f[R] statement
 that is not executed, bc(1) does not quit.)
@@ -1730,6 +1763,12 @@ https://pubs.opengroup.org/onlinepubs/9699919799/utilities/bc.html .
 The flags \f[B]-efghiqsvVw\f[R], all long options, and the extensions
 noted above are extensions to that specification.
 .PP
+In addition, the behavior of the \f[B]quit\f[R] implements an
+interpretation of that specification that is different from all known
+implementations.
+For more information see the \f[B]Statements\f[R] subsection of the
+\f[B]SYNTAX\f[R] section.
+.PP
 Note that the specification explicitly says that bc(1) only accepts
 numbers that use a period (\f[B].\f[R]) as a radix point, regardless of
 the value of \f[B]LC_NUMERIC\f[R].
@@ -1738,8 +1777,11 @@ This bc(1) supports error messages for different locales, and thus, it
 supports \f[B]LC_MESSAGES\f[R].
 .SH BUGS
 .PP
-None are known.
-Report bugs at https://git.yzena.com/gavin/bc.
+Before version \f[B]6.1.0\f[R], this bc(1) had incorrect behavior for
+the \f[B]quit\f[R] statement.
+.PP
+No other bugs are known.
+Report bugs at https://git.yzena.com/gavin/bc .
 .SH AUTHORS
 .PP
 Gavin D.