Defining the pragma construct.

§1.

enum PRAGMA_IST

void Inter::Pragma::define?Usage of Inter::Pragma::define:
Definition - §3(void) {
    inter_construct *IC = Inter::Defn::create_construct(
        PRAGMA_IST,
        L"pragma (%i+) \"(%c+)\"",
        I"pragma", I"pragmas");  pragmae? pragmata?
    IC->usage_permissions = OUTSIDE_OF_PACKAGES;
    METHOD_ADD(IC, CONSTRUCT_READ_MTID, Inter::Pragma::read);
    METHOD_ADD(IC, CONSTRUCT_TRANSPOSE_MTID, Inter::Pragma::transpose);
    METHOD_ADD(IC, CONSTRUCT_VERIFY_MTID, Inter::Pragma::verify);
    METHOD_ADD(IC, CONSTRUCT_WRITE_MTID, Inter::Pragma::write);
}

§2.

define TARGET_PRAGMA_IFLD 2
define TEXT_PRAGMA_IFLD 3
define EXTENT_PRAGMA_IFR 4

void Inter::Pragma::read?Usage of Inter::Pragma::read:
§1(inter_construct *IC, inter_bookmark *IBM, inter_line_parse *ilp, inter_error_location *eloc, inter_error_message **E) {
    *E = Inter::Defn::vet_level(IBM, PRAGMA_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_symbol *target_name = InterSymbolsTables::symbol_from_name(Inter::Bookmarks::scope(IBM), ilp->mr.exp[0]);
    if (target_name == NULL)
        target_name = Inter::Textual::new_symbol(eloc, Inter::Bookmarks::scope(IBM), ilp->mr.exp[0], E);
    if (*E) return;

    text_stream *S = ilp->mr.exp[1];
    inter_ti ID = Inter::Warehouse::create_text(Inter::Bookmarks::warehouse(IBM), Inter::Bookmarks::package(IBM));
    int literal_mode = FALSE;
    LOOP_THROUGH_TEXT(pos, S) {
        int c = (int) Str::get(pos);
        if (literal_mode == FALSE) {
            if (c == '\\') { literal_mode = TRUE; continue; }
        } else {
            switch (c) {
                case '\\': break;
                case '"': break;
                case 't': c = 9; break;
                case 'n': c = 10; break;
                default: { *E = Inter::Errors::plain(I"no such backslash escape", eloc); return; }
            }
        }
        if (Inter::Constant::char_acceptable(c) == FALSE) { *E = Inter::Errors::quoted(I"bad character in text", S, eloc); return; }
        PUT_TO(Inter::Warehouse::get_text(Inter::Bookmarks::warehouse(IBM), ID), c);
        literal_mode = FALSE;
    }

    *E = Inter::Pragma::new(IBM, target_name, ID, (inter_ti) ilp->indent_level, eloc);
}

inter_error_message *Inter::Pragma::new(inter_bookmark *IBM, inter_symbol *target_name, inter_ti pragma_text, inter_ti level, struct inter_error_location *eloc) {
    inter_tree_node *P = Inode::fill_2(IBM, PRAGMA_IST, InterSymbolsTables::id_from_IRS_and_symbol(IBM, target_name), pragma_text, 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::Pragma::transpose?Usage of Inter::Pragma::transpose:
§1(inter_construct *IC, inter_tree_node *P, inter_ti *grid, inter_ti grid_extent, inter_error_message **E) {
    P->W.data[TEXT_PRAGMA_IFLD] = grid[P->W.data[TEXT_PRAGMA_IFLD]];
}

void Inter::Pragma::verify?Usage of Inter::Pragma::verify:
§1(inter_construct *IC, inter_tree_node *P, inter_package *owner, inter_error_message **E) {
    if (P->W.extent != EXTENT_PRAGMA_IFR) { *E = Inode::error(P, I"extent wrong", NULL); return; }
    inter_symbol *target_name = InterSymbolsTables::symbol_from_frame_data(P, TARGET_PRAGMA_IFLD);
    if (target_name == NULL) { *E = Inode::error(P, I"no target name", NULL); return; }
    if (P->W.data[TEXT_PRAGMA_IFLD] == 0) { *E = Inode::error(P, I"no pragma text", NULL); return; }
}

void Inter::Pragma::write?Usage of Inter::Pragma::write:
§1(inter_construct *IC, OUTPUT_STREAM, inter_tree_node *P, inter_error_message **E) {
    inter_symbol *target_name = InterSymbolsTables::symbol_from_frame_data(P, TARGET_PRAGMA_IFLD);
    inter_ti ID = P->W.data[TEXT_PRAGMA_IFLD];
    text_stream *S = Inode::ID_to_text(P, ID);
    WRITE("pragma %S \"%S\"", target_name->symbol_name, S);
}