3d88cc1d3
Denys Vlasenko
2021-02-26
Subject
dc: correct --help text
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miscutils/bc.c+44 -2
| @@ -138,11 +138,53 @@ | |
| //usage: | |
| //usage:#define dc_full_usage "\n" | |
| //usage: "\nTiny RPN calculator. Operations:" | |
| - | //usage: "\n+, -, *, /, %, ~, ^," IF_FEATURE_DC_BIG(" |,") |
| + | //usage: "\nArithmetic: + - * / % ^" |
| + | //usage: IF_FEATURE_DC_BIG( |
| + | //usage: "\n~ - divide with remainder" |
| + | //usage: "\n| - modular exponentiation" |
| + | //usage: "\nv - square root" |
| + | //////// "\n_NNN - push neagtive number -NNN |
| + | //////// "\n[string] - push string |
| + | //////// "\nR - DC_LEX_POP pop and discard |
| + | //////// "\nc - DC_LEX_CLEAR_STACK clear stack |
| + | //////// "\nd - DC_LEX_DUPLICATE pop, push, push |
| + | //////// "\nr - DC_LEX_SWAP pop 1, pop 2, push 1, push 2 |
| + | //////// "\n:r - DC_LEX_COLON pop index, pop value, store to array 'r' |
| + | //////// "\n;r - DC_LEX_SCOLON pop index, fetch from array 'r', push |
| + | //////// "\nLr - DC_LEX_LOAD_PO, pop register 'r', push |
| + | //////// "\nSr - DC_LEX_STORE_PUSH pop, push to register 'r' |
| + | //////// "\nlr - DC_LEX_LOAD read register 'r', push |
| + | //////// "\nsr - DC_LEX_OP_ASSIGN pop, assign to register 'r' |
| + | //////// "\n? - DC_LEX_READ read line and execute |
| + | //////// "\nx - DC_LEX_EXECUTE pop string and execute |
| + | //////// "\n<r - XC_LEX_OP_REL_GT pop, pop, execute register 'r' if top-of-stack was greater |
| + | //////// "\n>r - XC_LEX_OP_REL_LT pop, pop, execute register 'r' if top-of-stack was less |
| + | //////// "\n=r - XC_LEX_OP_REL_EQ pop, pop, execute register 'r' if equal |
| + | //////// "\n!<r !>r !=r - negated forms |
| + | //////// "\ne - DC_LEX_ELSE >tef: "if greater execute 't' else execute 'f'" |
| + | //////// "\nQ - DC_LEX_NQUIT pop, "break N" from macro invocations |
| + | //////// "\nq - DC_LEX_QUIT "break 2" (if less than 2 levels of macros, exit dc) |
| + | //////// "\nX - DC_LEX_SCALE_FACTOR pop, push number of fractional digits |
| + | //////// "\nZ - DC_LEX_LENGTH pop, push number of digits it has (or number of characters in string) |
| + | //////// "\na - DC_LEX_ASCIIFY pop, push low-order byte as char or 1st string char |
| + | //////// "\n( - DC_LEX_LPAREN ? |
| + | //////// "\n{ - DC_LEX_LBRACE ? |
| + | //////// "\n_ - XC_LEX_NEG (not a command - starts negative number) |
| + | //////// "\nG - DC_LEX_EQ_NO_REG (? GNU dc has no such cmd) |
| + | //////// "\nN - DC_LEX_OP_BOOL_NOT (? GNU dc has no such cmd) |
| + | //////// "\nn - DC_LEX_PRINT_POP pop, print without newline |
| + | //////// "\nP - DC_LEX_PRINT_STREAM pop, print string or hex bytes |
| + | //usage: ) |
| //usage: "\np - print top of the stack without popping" | |
| //usage: "\nf - print entire stack" | |
| - | //usage: "\nk - pop the value and set the precision" |
| + | //////// "\nz - DC_LEX_STACK_LEVEL push stack depth |
| + | //////// "\nK - DC_LEX_SCALE push precision |
| + | //////// "\nI - DC_LEX_IBASE push input radix |
| + | //////// "\nO - DC_LEX_OBASE push output radix |
| + | //usage: IF_FEATURE_DC_BIG( |
| + | //usage: "\nk - pop the value and set precision" |
| //usage: "\ni - pop the value and set input radix" | |
| + | //usage: ) |
| //usage: "\no - pop the value and set output radix" | |
| //usage: "\nExamples: dc -e'2 2 + p' -> 4, dc -e'8 8 * 2 2 + / p' -> 16" | |
| //usage: | |