Defining the link construct.
enum LINK_IST
void Inter::Link::define(void) { inter_construct *IC = Inter::Defn::create_construct( LINK_IST, L"link (%i+) \"(%c*)\" \"(%c*)\" \"(%c*)\" \"(%c*)\"", I"link", I"links"); METHOD_ADD(IC, CONSTRUCT_READ_MTID, Inter::Link::read); METHOD_ADD(IC, CONSTRUCT_TRANSPOSE_MTID, Inter::Link::transpose); METHOD_ADD(IC, CONSTRUCT_VERIFY_MTID, Inter::Link::verify); METHOD_ADD(IC, CONSTRUCT_WRITE_MTID, Inter::Link::write); }
define STAGE_LINK_IFLD 2 define SEGMENT_LINK_IFLD 3 define PART_LINK_IFLD 4 define TO_RAW_LINK_IFLD 5 define TO_SEGMENT_LINK_IFLD 6 define REF_LINK_IFLD 7 define EXTENT_LINK_IFR 8 define EARLY_LINK_STAGE 1 define BEFORE_LINK_STAGE 2 define INSTEAD_LINK_STAGE 3 define AFTER_LINK_STAGE 4 define CATCH_ALL_LINK_STAGE 5
void Inter::Link::read(inter_construct *IC, inter_bookmark *IBM, inter_line_parse *ilp, inter_error_location *eloc, inter_error_message **E) { *E = Inter::Defn::vet_level(IBM, LINK_IST, ilp->indent_level, eloc); if (*E) return; if (Inter::Annotations::exist(&(ilp->set))) { *E = Inter::Errors::plain(I"__annotations are not allowed", eloc); return; } inter_ti stage = 0; text_stream *stage_text = ilp->mr.exp[0]; if (Str::eq(stage_text, I"early")) stage = EARLY_LINK_STAGE; else if (Str::eq(stage_text, I"before")) stage = BEFORE_LINK_STAGE; else if (Str::eq(stage_text, I"instead")) stage = INSTEAD_LINK_STAGE; else if (Str::eq(stage_text, I"after")) stage = AFTER_LINK_STAGE; else { *E = Inter::Errors::plain(I"no such stage name is supported", eloc); return; } inter_ti SIDS[5]; SIDS[0] = stage; for (int i=1; i<=4; i++) { SIDS[i] = Inter::Warehouse::create_text(Inter::Bookmarks::warehouse(IBM), Inter::Bookmarks::package(IBM)); *E = Inter::Constant::parse_text(Inter::Warehouse::get_text(Inter::Bookmarks::warehouse(IBM), SIDS[i]), ilp->mr.exp[i], 0, Str::len(ilp->mr.exp[i]), eloc); if (*E) return; } *E = Inter::Link::new(IBM, SIDS[0], SIDS[1], SIDS[2], SIDS[3], SIDS[4], 0, (inter_ti) ilp->indent_level, eloc); } inter_error_message *Inter::Link::new(inter_bookmark *IBM, inter_ti stage, inter_ti text1, inter_ti text2, inter_ti text3, inter_ti text4, inter_ti ref, inter_ti level, struct inter_error_location *eloc) { inter_tree_node *P = Inode::fill_6(IBM, LINK_IST, stage, text1, text2, text3, text4, ref, eloc, level); inter_error_message *E = Inter::Defn::verify_construct(Inter::Bookmarks::package(IBM), P); if (E) return E; Inter::Bookmarks::insert(IBM, P); return NULL; } void Inter::Link::transpose(inter_construct *IC, inter_tree_node *P, inter_ti *grid, inter_ti grid_extent, inter_error_message **E) { for (int i=SEGMENT_LINK_IFLD; i<=TO_SEGMENT_LINK_IFLD; i++) P->W.data[i] = grid[P->W.data[i]]; } void Inter::Link::verify(inter_construct *IC, inter_tree_node *P, inter_package *owner, inter_error_message **E) { if (P->W.extent != EXTENT_LINK_IFR) { *E = Inode::error(P, I"extent wrong", NULL); return; } if ((P->W.data[STAGE_LINK_IFLD] != EARLY_LINK_STAGE) && (P->W.data[STAGE_LINK_IFLD] != BEFORE_LINK_STAGE) && (P->W.data[STAGE_LINK_IFLD] != INSTEAD_LINK_STAGE) && (P->W.data[STAGE_LINK_IFLD] != AFTER_LINK_STAGE)) { *E = Inode::error(P, I"bad stage marker on link", NULL); return; } if (P->W.data[SEGMENT_LINK_IFLD] == 0) { *E = Inode::error(P, I"no segment text", NULL); return; } if (P->W.data[PART_LINK_IFLD] == 0) { *E = Inode::error(P, I"no part text", NULL); return; } if (P->W.data[TO_RAW_LINK_IFLD] == 0) { *E = Inode::error(P, I"no to-raw text", NULL); return; } if (P->W.data[TO_SEGMENT_LINK_IFLD] == 0) { *E = Inode::error(P, I"no to-segment text", NULL); return; } } void Inter::Link::write(inter_construct *IC, OUTPUT_STREAM, inter_tree_node *P, inter_error_message **E) { WRITE("link "); switch (P->W.data[STAGE_LINK_IFLD]) { case EARLY_LINK_STAGE: WRITE("early"); break; case BEFORE_LINK_STAGE: WRITE("before"); break; case INSTEAD_LINK_STAGE: WRITE("instead"); break; case AFTER_LINK_STAGE: WRITE("after"); break; } for (int i=SEGMENT_LINK_IFLD; i<=TO_SEGMENT_LINK_IFLD; i++) { WRITE(" \""); text_stream *S = Inode::ID_to_text(P, P->W.data[i]); Inter::Constant::write_text(OUT, S); WRITE("\""); } }