1149 === Variables  subsection
1191 [[jam.language.variables.expansion]]
1192 ==== Variable Expansion
1361 ==== Local For Loop Variables  argument
1377 [[jam.language.variables.atfile]]
1389 ==== Built-in Variables  argument
1396 [[jam.language.variables.builtins.search]]
1397 ===== SEARCH and LOCATE
1426 ===== HDRSCAN and HDRRULE
1457 ===== Semaphores
1480 ===== Platform Identifier
1501 ==== Jam Version