diff options
Diffstat (limited to 'apps/browse/main.mu')
| -rw-r--r-- | apps/browse/main.mu | 394 |
1 files changed, 0 insertions, 394 deletions
diff --git a/apps/browse/main.mu b/apps/browse/main.mu deleted file mode 100644 index 5b4f2e06..00000000 --- a/apps/browse/main.mu +++ /dev/null @@ -1,394 +0,0 @@ -fn main args-on-stack: (addr array addr array byte) -> _/ebx: int { - var args/eax: (addr array addr array byte) <- copy args-on-stack - var len/ecx: int <- length args - # if (len(args) <= 1) print usage and exit - compare len, 1 - { - break-if-> - print-string-to-real-screen "usage: browse [filename]\n" - print-string-to-real-screen " or browse test\n" - return 1 - } - # if (args[1] == "test") run-tests() - var tmp/ecx: (addr addr array byte) <- index args, 1 - var tmp2/eax: boolean <- string-equal? *tmp, "test" - compare tmp2, 0 - { - break-if-= - run-tests - return 0 # TODO: get at Num-test-failures somehow - } - # otherwise interactive mode - var args/eax: (addr array addr array byte) <- copy args-on-stack - var arg/eax: (addr addr array byte) <- index args, 1 - var filename/eax: (addr array byte) <- copy *arg - var file-storage: (handle buffered-file) - var file-storage-addr/esi: (addr handle buffered-file) <- address file-storage - open filename, 0, file-storage-addr - var fs/eax: (addr buffered-file) <- lookup file-storage - # if no file, exit - { - compare fs, 0 - break-if-!= - print-string-to-real-screen "file not found\n" - return 1 - } - # - interactive fs - return 0 -} - -fn interactive fs: (addr buffered-file) { - enable-screen-grid-mode - enable-keyboard-immediate-mode - # initialize screen state - var paginated-screen-storage: paginated-screen - var paginated-screen/eax: (addr paginated-screen) <- address paginated-screen-storage - initialize-paginated-screen paginated-screen, 0x40, 2, 5 - normal-text paginated-screen - # - { - render paginated-screen, fs - var key/eax: grapheme <- read-key-from-real-keyboard - compare key, 0x71/'q' - loop-if-!= - } - enable-keyboard-type-mode - enable-screen-type-mode -} - -fn render screen: (addr paginated-screen), fs: (addr buffered-file) { - start-drawing screen - render-normal screen, fs -} - -fn test-render-multicolumn-text { - # input text - var input-storage: (handle buffered-file) - var input-ah/eax: (addr handle buffered-file) <- address input-storage - populate-buffered-file-containing "abcdefgh", input-ah - var in/eax: (addr buffered-file) <- lookup input-storage - # output screen - var pg: paginated-screen - var pg-addr/ecx: (addr paginated-screen) <- address pg - initialize-fake-paginated-screen pg-addr, 3/rows, 6/cols, 2/page-width, 1/top-margin, 1/left-margin - # - render pg-addr, in - var screen-ah/eax: (addr handle screen) <- get pg, screen - var screen/eax: (addr screen) <- lookup *screen-ah - check-screen-row screen, 1, " ", "F - test-render-multicolumn-text/row1" - check-screen-row screen, 2, " ab ef", "F - test-render-multicolumn-text/row2" - check-screen-row screen, 3, " cd gh", "F - test-render-multicolumn-text/row3" -} - -fn test-render-heading-text { - # input text - var input-storage: (handle buffered-file) - var input-ah/eax: (addr handle buffered-file) <- address input-storage - populate-buffered-file-containing "# abc\n\ndef", input-ah - var in/eax: (addr buffered-file) <- lookup input-storage - # output screen - var pg: paginated-screen - var pg-addr/ecx: (addr paginated-screen) <- address pg - initialize-fake-paginated-screen pg-addr, 8/rows, 6/cols, 5/page-width, 1/top-margin, 1/left-margin - # - render pg-addr, in - var screen-ah/eax: (addr handle screen) <- get pg, screen - var screen/eax: (addr screen) <- lookup *screen-ah - check-screen-row screen, 1, " ", "F - test-render-heading-text/row1" - check-screen-row-in-color screen, 0xa0, 2, " abc ", "F - test-render-heading-text/heading" - check-screen-row screen, 3, " ", "F - test-render-heading-text/row3" - check-screen-row screen, 4, " def ", "F - test-render-heading-text/row4" -} - -fn test-render-bold-text { - # input text - var input-storage: (handle buffered-file) - var input-ah/eax: (addr handle buffered-file) <- address input-storage - populate-buffered-file-containing "a *b* c", input-ah - var in/eax: (addr buffered-file) <- lookup input-storage - # output screen - var pg: paginated-screen - var pg-addr/ecx: (addr paginated-screen) <- address pg - initialize-fake-paginated-screen pg-addr, 8/rows, 6/cols, 5/page-width, 1/top-margin, 1/left-margin - # - render pg-addr, in - var screen-ah/eax: (addr handle screen) <- get pg, screen - var screen/eax: (addr screen) <- lookup *screen-ah - check-screen-row screen, 2, " a b c", "F - test-render-bold-text/text" - check-screen-row-in-bold screen, 2, " b ", "F - test-render-bold-text/bold" -} - -# terminals don't always support italics, so we'll just always render italics -# as bold. -fn test-render-pseudoitalic-text { - # input text - var input-storage: (handle buffered-file) - var input-ah/eax: (addr handle buffered-file) <- address input-storage - populate-buffered-file-containing "a _b_ c", input-ah - var in/eax: (addr buffered-file) <- lookup input-storage - # output screen - var pg: paginated-screen - var pg-addr/ecx: (addr paginated-screen) <- address pg - initialize-fake-paginated-screen pg-addr, 8/rows, 6/cols, 5/page-width, 1/top-margin, 1/left-margin - # - render pg-addr, in - var screen-ah/eax: (addr handle screen) <- get pg, screen - var screen/eax: (addr screen) <- lookup *screen-ah - check-screen-row screen, 2, " a b c", "F - test-render-pseudoitalic-text/text" - check-screen-row-in-bold screen, 2, " b ", "F - test-render-pseudoitalic-text/bold" -} - -fn test-render-asterisk-in-text { - # input text - var input-storage: (handle buffered-file) - var input-ah/eax: (addr handle buffered-file) <- address input-storage - populate-buffered-file-containing "a*b*c", input-ah - var in/eax: (addr buffered-file) <- lookup input-storage - # output screen - var pg: paginated-screen - var pg-addr/ecx: (addr paginated-screen) <- address pg - initialize-fake-paginated-screen pg-addr, 8/nrows, 6/cols, 5/page-width, 1/top-margin, 1/left-margin - # - render pg-addr, in - var screen-ah/eax: (addr handle screen) <- get pg, screen - var screen/eax: (addr screen) <- lookup *screen-ah - check-screen-row screen, 2, " a*b*c", "F - test-render-bold-text/text" - check-screen-row-in-bold screen, 2, " ", "F - test-render-bold-text/bold" -} - -fn render-normal screen: (addr paginated-screen), fs: (addr buffered-file) { - var newline-seen?/esi: boolean <- copy 0/false - var start-of-paragraph?/edi: boolean <- copy 1/true - var previous-grapheme/ebx: grapheme <- copy 0 -$render-normal:loop: { - # if done-drawing?(screen) break - var done?/eax: boolean <- done-drawing? screen - compare done?, 0/false - break-if-!= - var c/eax: grapheme <- read-grapheme-buffered fs -$render-normal:loop-body: { - # if (c == EOF) break - compare c, 0xffffffff/end-of-file - break-if-= $render-normal:loop - - ## if (c == newline) perform some fairly sophisticated parsing for soft newlines - compare c, 0xa/newline - { - break-if-!= - # if it's the first newline, buffer it - compare newline-seen?, 0 - { - break-if-!= - newline-seen? <- copy 1/true - break $render-normal:loop-body - } - # otherwise render two newlines - { - break-if-= - add-grapheme screen, 0xa/newline - add-grapheme screen, 0xa/newline - newline-seen? <- copy 0/false - start-of-paragraph? <- copy 1/true - break $render-normal:loop-body - } - } - # if start of paragraph and c == '#', switch to header - compare start-of-paragraph?, 0 - { - break-if-= - compare c, 0x23/'#' - { - break-if-!= - render-header-line screen, fs - newline-seen? <- copy 1/true - break $render-normal:loop-body - } - } - # c is not a newline - start-of-paragraph? <- copy 0/false - # if c is unprintable (particularly a '\r' CR), skip it - compare c, 0x20 - loop-if-< $render-normal:loop - # If there's a newline buffered and c is a space, print the buffered - # newline (hard newline). - # If there's a newline buffered and c is not a newline or space, print a - # space (soft newline). - compare newline-seen?, 0/false -$render-normal:flush-buffered-newline: { - break-if-= - newline-seen? <- copy 0/false - { - compare c, 0x20 - break-if-!= - add-grapheme screen, 0xa/newline - break $render-normal:flush-buffered-newline - } - add-grapheme screen, 0x20/space - # fall through to print c - } - ## end soft newline support - -$render-normal:whitespace-separated-regions: { - # if previous-grapheme wasn't whitespace, skip this block - { - compare previous-grapheme, 0x20/space - break-if-= - compare previous-grapheme, 0xa/newline - break-if-= - break $render-normal:whitespace-separated-regions - } - # if (c == '*') switch to bold - compare c, 0x2a/* - { - break-if-!= - start-color-on-paginated-screen screen, 0xec/fg=darkish-grey, 7/bg=white - start-bold-on-paginated-screen screen - render-until-asterisk screen, fs - normal-text screen - break $render-normal:loop-body - } - # if (c == '_') switch to bold - compare c, 0x5f/_ - { - break-if-!= - start-color-on-paginated-screen screen, 0xec/fg=darkish-grey, 7/bg=white - start-bold-on-paginated-screen screen - render-until-underscore screen, fs - normal-text screen - break $render-normal:loop-body - } - } - # - add-grapheme screen, c - } # $render-normal:loop-body - previous-grapheme <- copy c - loop - } # $render-normal:loop -} - -fn render-header-line screen: (addr paginated-screen), fs: (addr buffered-file) { -$render-header-line:body: { - # compute color based on number of '#'s - var header-level/esi: int <- copy 1 # caller already grabbed one - var c/eax: grapheme <- copy 0 - { - # if done-drawing?(screen) return - { - var done?/eax: boolean <- done-drawing? screen - compare done?, 0/false - break-if-!= $render-header-line:body - } - # - c <- read-grapheme-buffered fs - # if (c != '#') break - compare c, 0x23/'#' - break-if-!= - # - header-level <- increment - # - loop - } - start-heading screen, header-level - { - # if done-drawing?(screen) break - { - var done?/eax: boolean <- done-drawing? screen - compare done?, 0/false - break-if-!= - } - # - c <- read-grapheme-buffered fs - # if (c == EOF) break - compare c, 0xffffffff/end-of-file - break-if-= - # if (c == newline) break - compare c, 0xa/newline - break-if-= - # - add-grapheme screen, c - # - loop - } - normal-text screen -} -} - -# colors for a light background, going from bright to dark (meeting up with bold-text) -fn start-heading screen: (addr paginated-screen), header-level: int { -$start-heading:body: { - start-bold-on-paginated-screen screen - compare header-level, 1 - { - break-if-!= - start-color-on-paginated-screen screen, 0xa0, 7 - break $start-heading:body - } - compare header-level, 2 - { - break-if-!= - start-color-on-paginated-screen screen, 0x7c, 7 - break $start-heading:body - } - compare header-level, 3 - { - break-if-!= - start-color-on-paginated-screen screen, 0x58, 7 - break $start-heading:body - } - compare header-level, 4 - { - break-if-!= - start-color-on-paginated-screen screen, 0x34, 7 - break $start-heading:body - } - start-color-on-paginated-screen screen, 0xe8, 7 -} -} - -fn render-until-asterisk screen: (addr paginated-screen), fs: (addr buffered-file) { - { - # if done-drawing?(screen) break - var done?/eax: boolean <- done-drawing? screen - compare done?, 0/false - break-if-!= - # - var c/eax: grapheme <- read-grapheme-buffered fs - # if (c == EOF) break - compare c, 0xffffffff/end-of-file - break-if-= - # if (c == '*') break - compare c, 0x2a/'*' - break-if-= - # - add-grapheme screen, c - # - loop - } -} - -fn render-until-underscore screen: (addr paginated-screen), fs: (addr buffered-file) { - { - # if done-drawing?(screen) break - var done?/eax: boolean <- done-drawing? screen - compare done?, 0/false - break-if-!= - # - var c/eax: grapheme <- read-grapheme-buffered fs - # if (c == EOF) break - compare c, 0xffffffff/end-of-file - break-if-= - # if (c == '_') break - compare c, 0x5f/'_' - break-if-= - # - add-grapheme screen, c - # - loop - } -} - -fn normal-text screen: (addr paginated-screen) { - reset-formatting-on-paginated-screen screen - start-color-on-paginated-screen screen, 0xec/fg=darkish-grey, 7/bg=white -} |